For some reason ABP 7.3.1 is installed on the website (which seems to be a development release according to ABP itself, note this is important for later). Running a backend CLI with 7.3.1 works fine. Yesterday however i was prompted to update to 7.3.2. Which i did. Backend CRON tasks now no longer work and generate an error.
The error is as follows (or at least the part i can see from the plesk backend. Plesk hasn't sent an email report yet)
********** ERROR! **********
Class 'Akeeba\Engine\Platform' not found
Technical information:
Code: 0
File: /var/www/vhosts/<domain.tld>/httpdocs/administrator/components/com_akeeba/Model/Backup.php
Line: 728
Stack Trace:
#0 /var/www/vhosts/<domain.tld>/httpdocs/cli/akeeba-backup.php(79): Akeeba\Backup\Admin\Model\Backup->getDefaultDescription()
#1 /var/www/vhosts/<domain.tld>/httpdocs/libraries/src/Application/CliApplication.php(143): AkeebaBackupCLI->doExecute()
#2 /var/www/vhosts/<domain.tld>/h...
Modifying absolutely nothing EXCEPT reinstalling 7.3.1 restores CLI backup functionality. Please let me know if you need more info.