After migration I can not login

[baahver]

Docker compose install, on debian host. with apache reverse proxy on the host.
All was working well. I created the user, en could login with admin and user. No problems.
But then I migrated my documents from Nextcloud following this guide:
https://docs.opencloud.eu/docs/admin/maintenance/migrate
But after that, I could not longer login on the web. There I see this message (translated):

Not logged in
This may be due to a routine logout for security reasons, or because your account is inactive or not yet authorised for use. Please try logging in again in a while or ask your administrator for assistance.

I think the problem is related to the settings: START_ADDITIONAL_SERVICES="auth-app" and PROXY_ENABLE_APP_AUTH="true"
But I do not know how to set this back to default. I tried:

START_ADDITIONAL_SERVICES="auth-basic"
PROXY_ENABLE_APP_AUTH="false"
#START_ADDITIONAL_SERVICES="auth-app"
OC_EXCLUDE_RUN_SERVICES="auth-app"
PROXY_ENABLE_BASIC_AUTH="true"
AUTH_BASIC_AUTH_MANAGER="ldap"

In different combinations.
But no solution. Can anyone help me out here? please!!

[micbar]

Please give us information what happens in

• browser console
• network tab
• Server logs

to help you.

[baahver]

I fixed the issue.
It looks like, it had nothing to do with the last changes because of the migration. It was a dns error.
I added:
dns:
- 1.1.1.1
- 8.8.8.8
dns_search: .
to the docker compose, and after that everything was working again.
Thank for your respons.