The Scheduler uses cookies eg. JWT token to verify user access. Make sure that cookies from “the-scheduler.ttae.com.pl” are enabled:

Example from Chrome of allowed cookie of The Scheduler

In Chrome you can check allowed cookies in by clicking the lock next to the page URL

Without active cookies you won’t be able to use the app, here you can see the example from 1 project with allowed and blocked cookies

Allowed vs Disabled app cookie, on the same page in the same project, SI table in background


Enabling cookies in details: