Impossible to restore backup

[artybdrlt]

Describe the bug

Same thing as with uptime_kuma:
I just tried restoring one backup.

First try: You need to remove yourls from your instance : Done, I remove the app
Second try: You need to have the directory /var/www/yourls : Ok I make the directory
Third try: You already have the directory /var/www/yourls: Hum, catch 21 situation here!

Context

• Hardware: *VPS bought online
• YunoHost version: 11.1.15
• I have access to my server: *Through SSH | through the webadmin | direct access via keyboard / screen |
• Are you in a special context or did you perform some particular tweaking on your YunoHost instance?: no

Expected behavior

Yourls app should get restored but it doesn't.

Logs

https://paste.yunohost.org/raw/funuvakazo