Also check that the client even exists

src/integrations/IntegrationManagers.js

@@ -67,7 +67,7 @@ export class IntegrationManagers {
     }
 
     _setupAccountManagers() {
-        if (!this._client.getUserId()) return; // not logged in
+        if (!this._client || !this._client.getUserId()) return; // not logged in
         const widgets = WidgetUtils.getIntegrationManagerWidgets();
         widgets.forEach(w => {
             const data = w.content['data'];