Something bronken after upgrade

Nextcloud version 20.0.4.0:
Operating system and version Ubuntu 18,04:
Traefik version 2.3.6:

After I upgraded my nextcloud with

docker-compose pull
docker-compose up -d

from 19.0.3.1 to 20.0.4.0 it stucks in the maintenance mode.

In the docker-compose logs I get the following message:

nextcloud-app      | 172.29.0.2 - - [03/Jan/2021:21:15:59 +0000] "GET /status.php HTTP/1.1" 200 1042 "-" "Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0"
nextcloud-app      | 172.29.0.2 - - [03/Jan/2021:21:16:19 +0000] "GET /status.php HTTP/1.1" 200 1042 "-" "Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0"
nextcloud-app      | 172.29.0.2 - Tim [03/Jan/2021:21:16:23 +0000] "PROPFIND /remote.php/dav/files/Tim/ HTTP/1.1" 503 857 "-" "Mozilla/5.0 (Linux) mirall/2.6.2-1build1 (Nextcloud)"
nextcloud-app      | [Sun Jan 03 21:16:29.402999 2021] [mpm_prefork:notice] [pid 1] AH00170: caught SIGWINCH, shutting down gracefully
nextcloud-app      | Configuring Redis as session handler
nextcloud-app      | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.18.0.5. Set the 'ServerName' directive globally to suppress this message
nextcloud-app      | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.18.0.5. Set the 'ServerName' directive globally to suppress this message
nextcloud-app      | [Sun Jan 03 21:16:31.849748 2021] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.38 (Debian) PHP/7.4.13 configured -- resuming normal operations

I’m not shure if this information is enough, I will provide more if needed.

Greetings Ti

Fixed it by deactivate the maintenance mode manully then, I get the option to update nextcloud and this works just fine. Maybe there was a pending update which stucks or so!?