Backup restore brocken - wrong file owner "yellowtent" instead of "www-data" in /app/data Lamp Stack

[dsp76]

Description

I had some no related issues in an application installed in the LAMP stack. When I tried to restore an earlier manual and automatic backup from today, the app failed to start after the restore. I found out, that all restored files are owned by "yellowtent" instead of "www-data". Unfortunately the shell doesn't start so I can't manually fix it recursively.

Steps to reproduce

• restore LAMP App from backup
• files are owned by "yellowtent"

Logs

Jan 22 20:43:48 ==> Do not override existing index file
Jan 22 20:43:48 ==> PHP version set to 8.3
Jan 22 20:43:48 ==> Source custom startup script
Jan 22 20:43:48 touch: cannot touch '/app/data/tmp/.npmrc': Permission denied

Troubleshooting Already Performed

• tried to enter terminal to change owner of the files

System Details

Generate Diagnostics Data

Cloudron Version

Cloudron version - 9.0.17

Ubuntu Version

Ubuntu version - Ubuntu 24.04 LTS Linux 6.8.0-90-generic

Cloudron installation method

Options:

• Manual with ./cloudron-setup

Output of cloudron-support --troubleshoot

Vendor: Hetzner Product: vServer
Linux: 6.8.0-90-generic
Ubuntu: noble 24.04
Execution environment: kvm
Processor: AMD EPYC-Milan Processor
BIOS NotSpecified  CPU @ 2.0GHz x 8
RAM: 32087112KB
Disk: /dev/sda1        21G
[OK]	node version is correct
[OK]	IPv6 is enabled and public IPv6 address is working
[OK]	docker is running
[OK]	docker version is correct
[OK]	MySQL is running
[OK]	netplan is good
[OK]	DNS is resolving via systemd-resolved
[OK]	unbound is running
[OK]	nginx is running
[OK]	dashboard cert is valid
[OK]	dashboard is reachable via loopback
[OK]	No pending database migrations
[OK]	Service 'mysql' is running and healthy
[OK]	Service 'postgresql' is running and healthy
[OK]	Service 'mongodb' is running and healthy
[OK]	Service 'mail' is running and healthy
[OK]	Service 'graphite' is running and healthy
[OK]	Service 'sftp' is running and healthy
[OK]	box v9.0.17 is running
[OK]	Dashboard is reachable via domain name

[dsp76]

OK - managed to enter the terminal with recovery modus and changed ownership of the files. App is now running again. But still - whats the issue with the backup restore?