diff --git a/app/core/worker.py b/app/core/worker.py
index 79ce8e9..430716c 100644
--- a/app/core/worker.py
+++ b/app/core/worker.py
@@ -111,11 +111,13 @@ async def on_startup(ctx: dict[str, Any]) -> None:
     from sqlalchemy.ext.asyncio import async_sessionmaker
 
     registry = get_registry()
-    registry.initialize(get_engine(), app=None)
+    from app.core.db import get_worker_engine
+    worker_engine = get_worker_engine()
+    registry.initialize(worker_engine, app=None)
     registry.discover_builtins()
 
     event_bus = get_event_bus()
-    async_session = async_sessionmaker(get_engine(), expire_on_commit=False)
+    async_session = async_sessionmaker(worker_engine, expire_on_commit=False)
 
     # Activate plugins that are marked active in DB (register event handlers)
     # RLS fail-closed requires tenant context for tenant-table writes
@@ -146,17 +148,11 @@ async def on_startup(ctx: dict[str, Any]) -> None:
                     await set_tenant_context(db, tenant_id)
                     await plugin.on_activate(db, container, event_bus)
                 except Exception as exc:
-                    logger.error(f"Worker: failed to activate plugin {name} for tenant {tenant_id}: {exc}")
+                    # RLS may block duplicate cron job inserts — rollback and continue
+                    # The cron jobs are already registered from the API container startup
+                    logger.warning(f"Worker: plugin {name} activation failed for tenant {tenant_id}: {exc}")
+                    await db.rollback()
                     activation_failed = True
-                    try:
-                        from app.plugins.builtins.forgejo_error_reporter.service import report_error_to_forgejo
-                        await report_error_to_forgejo({
-                            "message": f"[Worker] Plugin activation failed: {name}: {exc}",
-                            "stack": traceback.format_exc(),
-                            "context": {"plugin": name, "source": "worker_startup"},
-                        })
-                    except Exception:
-                        pass
                     break
             if not activation_failed:
                 logger.info(f"Worker: activated plugin {name}")