diff --git a/packages/twenty-front/src/modules/sse-db-event/components/SSEQuerySubscribeEffect.tsx b/packages/twenty-front/src/modules/sse-db-event/components/SSEQuerySubscribeEffect.tsx
index 53c38e46b8..3f5e046ee0 100644
--- a/packages/twenty-front/src/modules/sse-db-event/components/SSEQuerySubscribeEffect.tsx
+++ b/packages/twenty-front/src/modules/sse-db-event/components/SSEQuerySubscribeEffect.tsx
@@ -8,6 +8,7 @@ import { sseEventStreamReadyState } from '@/sse-db-event/states/sseEventStreamRe
 import { isGracefullyHandledEventStreamError } from '@/sse-db-event/utils/isGracefullyHandledEventStreamError';
 import { useAtomStateValue } from '@/ui/utilities/state/jotai/hooks/useAtomStateValue';
 import { CombinedGraphQLErrors } from '@apollo/client/errors';
+import { captureException } from '@sentry/react';
 import { useMutation } from '@apollo/client/react';
 import { isNonEmptyString } from '@sniptt/guards';
 import { useStore } from 'jotai';
@@ -47,18 +48,20 @@ export const SSEQuerySubscribeEffect = () => {
         const extensions = getGraphqlErrorExtensionsFromError(error);
 
         if (
-          isGracefullyHandledEventStreamError({
+          !isGracefullyHandledEventStreamError({
             subCode: extensions?.subCode,
             code: extensions?.code,
           })
         ) {
-          store.set(activeQueryListenersState.atom, []);
-          store.set(shouldDestroyEventStreamState.atom, true);
-
-          return;
+          captureException(
+            new Error(`Unhandled error for event stream: ${error.message}`, {
+              cause: error,
+            }),
+          );
         }
 
-        throw new Error(`Unhandled error for event stream: ${error.message}`);
+        store.set(activeQueryListenersState.atom, []);
+        store.set(shouldDestroyEventStreamState.atom, true);
       }
     },
     [store],
diff --git a/packages/twenty-server/src/engine/subscriptions/event-stream-exception.filter.ts b/packages/twenty-server/src/engine/subscriptions/event-stream-exception.filter.ts
index 0715f964f5..7fd3b7a730 100644
--- a/packages/twenty-server/src/engine/subscriptions/event-stream-exception.filter.ts
+++ b/packages/twenty-server/src/engine/subscriptions/event-stream-exception.filter.ts
@@ -3,7 +3,7 @@ import { GqlExceptionFilter } from '@nestjs/graphql';
 
 import { assertUnreachable } from 'twenty-shared/utils';
 
-import { InternalServerError } from 'src/engine/core-modules/graphql/utils/graphql-errors.util';
+import { ForbiddenError } from 'src/engine/core-modules/graphql/utils/graphql-errors.util';
 import {
   EventStreamException,
   EventStreamExceptionCode,
@@ -15,7 +15,7 @@ export class EventStreamExceptionFilter implements GqlExceptionFilter {
     switch (exception.code) {
       case EventStreamExceptionCode.EVENT_STREAM_ALREADY_EXISTS:
       case EventStreamExceptionCode.NOT_AUTHORIZED:
-        throw new InternalServerError(exception.message, {
+        throw new ForbiddenError(exception.message, {
           subCode: exception.code,
           userFriendlyMessage: exception.userFriendlyMessage,
         });