Android App can´t connect to Rasberry Pi

Hey there,

i have a Rasberry pi with a dockerized version of Nextcloud.
But when i want to connect in the Android App i get this error:
“Es ist ein unbekannter Fehler aufgetreten”
I allready checked that the Hostname with the Port is in the trusted Domains and it seems that it finds because there is a request to the docker container. But i get a 408 Http Error on /remote.php/webdav/
The hostname i entered in the field is “http://picroft:4747

The problem is definitely in configuration. Have you tried googling or searching for your error? I see a lot of possible solutions. Also check apache and nextcloud logs. If possible, I recommend setting up https. Cannot really help you without actual configuration details.