What app is this about, and its version: Synapse-1.144.0~ynh1 What YunoHost version are you running: 12.1.139 What type of hardware are you using: VPS bought online
Describe your issue
Upgrading Synapse was aborted with the following message below.
WARNING - File or folder ‘/etc/php/8.3/fpm/pool.d/synapse.conf’ to be backed up does not exist
ERROR - Failed to collect files to backed up for synapse.
@otm33 suggestion is already the best for your issue which not seems to be common to other users. Why are you expecting something else?
Did you search the missing file with ls /etc/php/*/fpm/pool.d/synapse.conf