Cannot login into forum anymore - no user recognized

It seems like no user cannot login anymore in Pydio.

Nothing has been changed, no updates have been made. I am using the latest “old” Pydio which is 8. on debian.
Storage is enough avaialble, mysql is avaialble and the passwords have not changed.

Any idea what could be wrong or how I can fix it? Thanks.


Do you have message errors in webbrowser, in log of apache/nginx ?

Hi, good hint!

[Mon Sep 16 18:08:59.535321 2019] [:error] [pid 748] [client] [PYDIO] IP | user shared | Error | error l.70 | from SecureTokenMiddleware.php | message=You are not allowed to access this resource., referer: