Angular WebPortal Problem


We are using Angular Web Portal. We passed custom application for the api server. Some users use the web portal properly. Evertyhing seems good but some users also cannot use web portal properly. They have been getting an error ('TypeError:Cannot read properties of undefined (reading, 'length')'). We had faced the same error for password reset portal side. We applied hotfix for this issue before. Now, some users get an error as soon as they log in to web portal. We realized that users which get the error are using browser language as Polish. I'm not sure but may this situation cause an error? Could you help us for this issue?

Best Regards,
Omer Dagdeviren.