diff --git a/src/core/directives/link.ts b/src/core/directives/link.ts
index fc1d70a4b..02380e6f2 100644
--- a/src/core/directives/link.ts
+++ b/src/core/directives/link.ts
@@ -140,7 +140,7 @@ export class CoreLinkDirective implements OnInit {
             try {
                 await CoreCustomURLSchemes.handleCustomURL(href);
             } catch (error) {
-                CoreCustomURLSchemes.treatHandleCustomURLError(error);
+                CoreCustomURLSchemes.treatHandleCustomURLError(error, href, 'CoreLinkDirective');
             }
 
             return;
diff --git a/src/core/features/login/pages/site/site.ts b/src/core/features/login/pages/site/site.ts
index a454bd12e..71051aa74 100644
--- a/src/core/features/login/pages/site/site.ts
+++ b/src/core/features/login/pages/site/site.ts
@@ -564,7 +564,7 @@ export class CoreLoginSitePage implements OnInit {
                     // An error ocurred, but it's an authentication URL and we have the site URL.
                     this.treatErrorInAuthenticationCustomURL(text, error);
                 } else {
-                    CoreCustomURLSchemes.treatHandleCustomURLError(error);
+                    CoreCustomURLSchemes.treatHandleCustomURLError(error, text, 'CoreLoginSitePage');
                 }
             }
 
@@ -630,7 +630,7 @@ export class CoreLoginSitePage implements OnInit {
             '<br><br>' + Translate.instant('core.login.youcanstillconnectwithcredentials'),
         );
 
-        CoreCustomURLSchemes.treatHandleCustomURLError(error);
+        CoreCustomURLSchemes.treatHandleCustomURLError(error, customURL, 'CoreLoginSitePage');
     }
 
     /**
diff --git a/src/core/initializers/initialize-urlscheme.ts b/src/core/initializers/initialize-urlscheme.ts
index 312d53c1f..7c457aef1 100644
--- a/src/core/initializers/initialize-urlscheme.ts
+++ b/src/core/initializers/initialize-urlscheme.ts
@@ -42,7 +42,7 @@ export default async function(): Promise<void> {
 
             CoreEvents.trigger(CoreEvents.APP_LAUNCHED_URL, { url });
             CoreCustomURLSchemes.handleCustomURL(url).catch((error) => {
-                CoreCustomURLSchemes.treatHandleCustomURLError(error);
+                CoreCustomURLSchemes.treatHandleCustomURLError(error, url, 'handleOpenURL');
             });
         });
     };
diff --git a/src/core/initializers/prepare-inapp-browser.ts b/src/core/initializers/prepare-inapp-browser.ts
index 30ec93d55..720daaf46 100644
--- a/src/core/initializers/prepare-inapp-browser.ts
+++ b/src/core/initializers/prepare-inapp-browser.ts
@@ -41,7 +41,7 @@ export default function(): void {
         if (CoreCustomURLSchemes.isCustomURL(url)) {
             // Close the browser if it's a valid SSO URL.
             CoreCustomURLSchemes.handleCustomURL(url).catch((error) => {
-                CoreCustomURLSchemes.treatHandleCustomURLError(error);
+                CoreCustomURLSchemes.treatHandleCustomURLError(error, url, 'InAppBrowser');
             });
             CoreOpener.closeInAppBrowser();
 
diff --git a/src/core/services/qrscan.ts b/src/core/services/qrscan.ts
index 257781624..c4699e1b4 100644
--- a/src/core/services/qrscan.ts
+++ b/src/core/services/qrscan.ts
@@ -77,7 +77,7 @@ export class CoreQRScanService {
             try {
                 await CoreCustomURLSchemes.handleCustomURL(text);
             } catch (error) {
-                CoreCustomURLSchemes.treatHandleCustomURLError(error);
+                CoreCustomURLSchemes.treatHandleCustomURLError(error, text, 'CoreQRScanService');
             }
 
             return;
diff --git a/src/core/services/urlschemes.ts b/src/core/services/urlschemes.ts
index 22d876bf8..05b4cca6a 100644
--- a/src/core/services/urlschemes.ts
+++ b/src/core/services/urlschemes.ts
@@ -520,8 +520,10 @@ export class CoreCustomURLSchemesProvider {
      * Treat error returned by handleCustomURL.
      *
      * @param error Error data.
+     * @param url The URL that caused the error.
+     * @param origin Origin of the treat handle error call.
      */
-    treatHandleCustomURLError(error: CoreCustomURLSchemesHandleError): void {
+    treatHandleCustomURLError(error: CoreCustomURLSchemesHandleError, url = '', origin = 'unknown'): void {
         if (error.error === 'Duplicated') {
             // Duplicated request
         } else if (CoreWSError.isWebServiceError(error.error) && error.data && error.data.isSSOToken) {
@@ -531,7 +533,7 @@ export class CoreCustomURLSchemesProvider {
         } else {
             CoreDomUtils.showErrorModal(error.error ?? new CoreError(Translate.instant('core.login.invalidsite'), { debug: {
                 code: 'unknownerror',
-                details: 'Unknown error when treating a URL scheme.',
+                details: `Unknown error when treating a URL scheme.<br><br>Origin: ${origin}.<br><br>URL: ${url}.`,
             } }));
         }
     }