here is my problem…
I was installing Nextcloud on an Unraid server some weeks back but I had an issue with it and I had to wipe my appdata folder with all in it.
Today I started the installation again but apparently something is wrong since, every time I try to reinstall everything I get an error like the following:
Username is invalid because files already exist for this user
I tried to change the username, the password and I also tried to reinstall everything again and again…
same problem. Any clue?
at some point of the installation you connected to your database management system (mariadb/mysql/postgresql) and you created a nextcloud database. the command was most likely CREATE DATABASE nextcloud;
the command to delete this database (for ever!) is DROP DATABASE nextcloud
if you use sqlite you have to delete the sqlite file. (can’t tell you where you find that. but it should be in same folder where you installed nextcloud.)