diff --git a/js/app.js b/js/app.js
index 88a28b9f..95ebb19c 100644
--- a/js/app.js
+++ b/js/app.js
@@ -5910,6 +5910,69 @@ class Application {
     shares,
     shareTracker,
   }) {
+    const summarizeTracker = (tracker) =>
+      Array.isArray(tracker)
+        ? tracker.map((entry) => ({
+            type: entry?.type || "unknown",
+            status: entry?.status || "unknown",
+            amount:
+              Number.isFinite(entry?.amount) && entry.amount >= 0
+                ? entry.amount
+                : undefined,
+            address: entry?.address || undefined,
+            hasPayment: Boolean(entry?.payment),
+            errorMessage:
+              typeof entry?.error?.message === "string"
+                ? entry.error.message
+                : entry?.error
+                ? String(entry.error)
+                : undefined,
+          }))
+        : undefined;
+    const logZapError = (stage, details, error) => {
+      const summary = {
+        stage,
+        shareType: details?.shareType,
+        address: details?.address,
+        amount:
+          Number.isFinite(details?.amount) && details.amount >= 0
+            ? details.amount
+            : undefined,
+        overrideFee:
+          typeof details?.overrideFee === "number"
+            ? details.overrideFee
+            : undefined,
+        commentLength:
+          typeof details?.comment === "string"
+            ? details.comment.length
+            : undefined,
+        wallet:
+          details?.walletSettings
+            ? {
+                hasUri: Boolean(details.walletSettings.nwcUri),
+                type:
+                  details.walletSettings.type ||
+                  details.walletSettings.name ||
+                  details.walletSettings.client ||
+                  undefined,
+              }
+            : undefined,
+        shares: details?.context?.shares
+          ? {
+              total: details.context.shares.total,
+              creator: details.context.shares.creatorShare,
+              platform: details.context.shares.platformShare,
+            }
+          : undefined,
+        tracker: summarizeTracker(details?.tracker),
+        retryAttempt:
+          Number.isInteger(details?.retryAttempt) && details.retryAttempt >= 0
+            ? details.retryAttempt
+            : undefined,
+      };
+      console.error("[zap] Modal zap failure", summary, error);
+    };
+
     const lightningAddress = this.currentVideo?.lightningAddress || "";
     const creatorKey = normalizeLightningAddressKey(
       creatorEntry?.address || lightningAddress
@@ -5978,7 +6041,22 @@ class Application {
         requestInvoice,
       },
       wallet: {
-        ensureWallet: (options) => ensureWalletFn(options),
+        ensureWallet: async (options) => {
+          try {
+            return await ensureWalletFn(options);
+          } catch (error) {
+            logZapError(
+              "wallet.ensureWallet",
+              {
+                tracker: shareTracker,
+                context: { shares },
+                walletSettings: options?.settings,
+              },
+              error
+            );
+            throw error;
+          }
+        },
         sendPayment: async (bolt11, params) => {
           try {
             const payment = await sendPaymentFn(bolt11, params);
@@ -6020,6 +6098,17 @@ class Application {
                 error,
               });
             }
+            logZapError(
+              "wallet.sendPayment",
+              {
+                shareType: activeShare || "unknown",
+                amount,
+                address,
+                tracker: shareTracker,
+                context: { shares },
+              },
+              error
+            );
             throw error;
           } finally {
             activeShare = null;
@@ -6126,10 +6215,29 @@ class Application {
       return null;
     }
 
-    const context = await this.prepareModalLightningContext({
-      amount,
-      overrideFee,
-    });
+    let context;
+    try {
+      context = await this.prepareModalLightningContext({
+        amount,
+        overrideFee,
+      });
+    } catch (error) {
+      console.error(
+        "[zap] Modal lightning context failed",
+        {
+          amount,
+          overrideFee,
+          commentLength: typeof comment === "string" ? comment.length : undefined,
+          wallet: {
+            hasUri: Boolean(settings?.nwcUri),
+            type:
+              settings?.type || settings?.name || settings?.client || undefined,
+          },
+        },
+        error
+      );
+      throw error;
+    }
     const shareTracker = [];
     const dependencies = this.createModalZapDependencies({
       ...context,
@@ -6159,6 +6267,39 @@ class Application {
       if (Array.isArray(shareTracker) && shareTracker.length) {
         error.__zapShareTracker = shareTracker;
       }
+      console.error(
+        "[zap] splitAndZap failed",
+        {
+          amount,
+          overrideFee,
+          commentLength: typeof comment === "string" ? comment.length : undefined,
+          wallet: {
+            hasUri: Boolean(settings?.nwcUri),
+            type:
+              settings?.type || settings?.name || settings?.client || undefined,
+          },
+          shares: {
+            total: context?.shares?.total,
+            creator: context?.shares?.creatorShare,
+            platform: context?.shares?.platformShare,
+          },
+          tracker: Array.isArray(shareTracker)
+            ? shareTracker.map((entry) => ({
+                type: entry?.type || "unknown",
+                status: entry?.status || "unknown",
+                amount: entry?.amount,
+                address: entry?.address,
+                errorMessage:
+                  typeof entry?.error?.message === "string"
+                    ? entry.error.message
+                    : entry?.error
+                    ? String(entry.error)
+                    : undefined,
+              }))
+            : undefined,
+        },
+        error
+      );
       throw error;
     } finally {
       if (hasGlobal && typeof overrideFee === "number" && Number.isFinite(overrideFee)) {
@@ -6224,6 +6365,31 @@ class Application {
         const tracker = Array.isArray(error?.__zapShareTracker)
           ? error.__zapShareTracker
           : [];
+        console.error(
+          "[zap] Modal zap retry failed",
+          {
+            shareType: share?.type || "unknown",
+            amount: share?.amount,
+            address: share?.address,
+            commentLength:
+              typeof (retryState?.comment || comment) === "string"
+                ? (retryState?.comment || comment).length
+                : undefined,
+            tracker: tracker.map((entry) => ({
+              type: entry?.type || "unknown",
+              status: entry?.status || "unknown",
+              amount: entry?.amount,
+              address: entry?.address,
+              errorMessage:
+                typeof entry?.error?.message === "string"
+                  ? entry.error.message
+                  : entry?.error
+                  ? String(entry.error)
+                  : undefined,
+            })),
+          },
+          error
+        );
         if (tracker.length) {
           aggregatedTracker.push(...tracker);
         }
@@ -6358,6 +6524,37 @@ class Application {
       const tracker = Array.isArray(error?.__zapShareTracker)
         ? error.__zapShareTracker
         : [];
+      console.error(
+        "[zap] Modal zap attempt failed",
+        {
+          amount,
+          commentLength: typeof comment === "string" ? comment.length : undefined,
+          wallet: {
+            hasUri: Boolean(walletSettings?.nwcUri),
+            type:
+              walletSettings?.type ||
+              walletSettings?.name ||
+              walletSettings?.client ||
+              undefined,
+          },
+          tracker: tracker.map((entry) => ({
+            type: entry?.type || "unknown",
+            status: entry?.status || "unknown",
+            amount: entry?.amount,
+            address: entry?.address,
+            errorMessage:
+              typeof entry?.error?.message === "string"
+                ? entry.error.message
+                : entry?.error
+                ? String(entry.error)
+                : undefined,
+          })),
+          retryPending: Array.isArray(this.modalZapRetryState?.shares)
+            ? this.modalZapRetryState.shares.length
+            : 0,
+        },
+        error
+      );
       if (tracker.length) {
         this.videoModal?.renderZapReceipts(tracker, { partial: true });
       }
diff --git a/js/channelProfile.js b/js/channelProfile.js
index 2b274926..e4a95056 100644
--- a/js/channelProfile.js
+++ b/js/channelProfile.js
@@ -38,6 +38,67 @@ const getApp = () => getApplication();
 let currentChannelHex = null;
 let currentChannelNpub = null;
 let currentChannelLightningAddress = "";
+
+const summarizeZapTracker = (tracker) =>
+  Array.isArray(tracker)
+    ? tracker.map((entry) => ({
+        type: entry?.type || "unknown",
+        status: entry?.status || "unknown",
+        amount:
+          Number.isFinite(entry?.amount) && entry.amount >= 0
+            ? entry.amount
+            : undefined,
+        address: entry?.address || undefined,
+        hasPayment: Boolean(entry?.payment),
+        errorMessage:
+          typeof entry?.error?.message === "string"
+            ? entry.error.message
+            : entry?.error
+            ? String(entry.error)
+            : undefined,
+      }))
+    : undefined;
+
+function logZapError(stage, details = {}, error) {
+  const summary = {
+    stage,
+    shareType: details?.shareType,
+    address: details?.address,
+    amount:
+      Number.isFinite(details?.amount) && details.amount >= 0
+        ? details.amount
+        : undefined,
+    overrideFee:
+      typeof details?.overrideFee === "number"
+        ? details.overrideFee
+        : undefined,
+    commentLength:
+      typeof details?.comment === "string" ? details.comment.length : undefined,
+    wallet: details?.walletSettings
+      ? {
+          hasUri: Boolean(details.walletSettings.nwcUri),
+          type:
+            details.walletSettings.type ||
+            details.walletSettings.name ||
+            details.walletSettings.client ||
+            undefined,
+        }
+      : undefined,
+    shares: details?.context?.shares
+      ? {
+          total: details.context.shares.total,
+          creator: details.context.shares.creatorShare,
+          platform: details.context.shares.platformShare,
+        }
+      : undefined,
+    tracker: summarizeZapTracker(details?.tracker),
+    retryAttempt:
+      Number.isInteger(details?.retryAttempt) && details.retryAttempt >= 0
+        ? details.retryAttempt
+        : undefined,
+  };
+  console.error("[zap] Channel zap failure", summary, error);
+}
 let currentChannelProfileEvent = null;
 
 let cachedZapButton = null;
@@ -477,7 +538,22 @@ function createZapDependencies({ creatorEntry, platformEntry, shares, shareTrack
       requestInvoice,
     },
     wallet: {
-      ensureWallet: (options) => ensureWallet(options),
+      ensureWallet: async (options) => {
+        try {
+          return await ensureWallet(options);
+        } catch (error) {
+          logZapError(
+            "wallet.ensureWallet",
+            {
+              tracker: shareTracker,
+              context: { shares },
+              walletSettings: options?.settings,
+            },
+            error
+          );
+          throw error;
+        }
+      },
       sendPayment: async (bolt11, params) => {
         try {
           const payment = await sendPayment(bolt11, params);
@@ -519,6 +595,17 @@ function createZapDependencies({ creatorEntry, platformEntry, shares, shareTrack
               error,
             });
           }
+          logZapError(
+            "wallet.sendPayment",
+            {
+              shareType: activeShare || "unknown",
+              amount,
+              address,
+              tracker: shareTracker,
+              context: { shares },
+            },
+            error
+          );
           throw error;
         } finally {
           activeShare = null;
@@ -569,7 +656,21 @@ async function runZapAttempt({ amount, overrideFee = null, walletSettings }) {
     return null;
   }
 
-  const context = await prepareLightningContext({ amount, overrideFee });
+  let context;
+  try {
+    context = await prepareLightningContext({ amount, overrideFee });
+  } catch (error) {
+    logZapError(
+      "prepareLightningContext",
+      {
+        amount,
+        overrideFee,
+        walletSettings: settings,
+      },
+      error
+    );
+    throw error;
+  }
   const shareTracker = [];
   const dependencies = createZapDependencies({
     ...context,
@@ -598,6 +699,17 @@ async function runZapAttempt({ amount, overrideFee = null, walletSettings }) {
     if (Array.isArray(shareTracker) && shareTracker.length) {
       error.__zapShareTracker = shareTracker;
     }
+    logZapError(
+      "splitAndZap",
+      {
+        amount,
+        overrideFee,
+        walletSettings: settings,
+        context,
+        tracker: shareTracker,
+      },
+      error
+    );
     throw error;
   } finally {
     if (hasGlobal && typeof overrideFee === "number" && Number.isFinite(overrideFee)) {
@@ -654,6 +766,17 @@ async function executePendingRetry({ walletSettings }) {
       const tracker = Array.isArray(error?.__zapShareTracker)
         ? error.__zapShareTracker
         : [];
+      logZapError(
+        "retry.share",
+        {
+          shareType: share?.type || "unknown",
+          amount: share?.amount,
+          address: share?.address,
+          walletSettings,
+          tracker,
+        },
+        error
+      );
       if (tracker.length) {
         aggregatedTracker.push(...tracker);
       }
@@ -714,6 +837,7 @@ async function handleZapButtonClick(event) {
   zapButton.classList.add("opacity-50", "pointer-events-none");
   amountInput.disabled = true;
 
+  let attemptedAmount = null;
   try {
     if (pendingZapRetry?.shares?.length) {
       await executePendingRetry({ walletSettings });
@@ -721,6 +845,7 @@ async function handleZapButtonClick(event) {
     }
 
     const amount = Math.max(0, Math.round(Number(amountInput.value || 0)));
+    attemptedAmount = amount;
     if (!amount) {
       const message = "Enter a zap amount greater than zero.";
       setZapStatus(message, "error");
@@ -753,6 +878,19 @@ async function handleZapButtonClick(event) {
     const tracker = Array.isArray(error?.__zapShareTracker)
       ? error.__zapShareTracker
       : [];
+    logZapError(
+      "handleZapButtonClick",
+      {
+        amount: attemptedAmount,
+        walletSettings,
+        tracker,
+        retryAttempt:
+          Array.isArray(pendingZapRetry?.shares) && pendingZapRetry.shares.length
+            ? pendingZapRetry.shares.length
+            : undefined,
+      },
+      error
+    );
     if (tracker.length) {
       renderZapReceipts(tracker, { partial: true });
     }
diff --git a/js/payments/nwcClient.js b/js/payments/nwcClient.js
index a3b85588..ff5a5ff2 100644
--- a/js/payments/nwcClient.js
+++ b/js/payments/nwcClient.js
@@ -42,6 +42,23 @@ function assertNostrTools(methods = []) {
     const isCallable = typeof candidate === "function";
     const isNamespace = candidate && typeof candidate === "object";
     if (!isCallable && !isNamespace) {
+      try {
+        const available = Array.isArray(Object.keys(tools))
+          ? Object.keys(tools)
+          : [];
+        console.error(
+          "[nwcClient] Required NostrTools capability is missing.",
+          {
+            missingMethod: method,
+            availableMethods: available,
+          }
+        );
+      } catch (loggingError) {
+        console.error(
+          "[nwcClient] Failed to enumerate available NostrTools methods.",
+          loggingError
+        );
+      }
       throw new Error(`NostrTools.${method} is unavailable.`);
     }
   }