Incremental backup not working (normal backup does)

Hello,
I set up backup (it’s working) on a remote backup.
I tried to setup incremential backup, but i have the following error
Unable to open restic backup. It might not exist or key is incorrect"

The destination folder exists (i created it), but i still have this message.
I tried to find the solution without success so far… is anyone using incremential backup ? how ?

Also (bonus question) is it possible to make incremential backup daily + full backyp weekly ? If so, how ?

Thanks alot :slight_smile: