Freepbx 16 backup started failing

I have a PBXact 16.0.45 that the backups stopped stopped working after 4/16/2026.

I’m saving to a remote ftp fileserver. Other backups to the same server are still working fine.

I ran updates with fwconsole ma upgradeall and backups still fail. What should I look for next?

Finished Cleaning up
Finished created backup file: 20260618-094949-1781794189-16.0.45-416567972.tar.gz
Performing Local Maintenance
Removing /var/spool/asterisk/backup/GooMi0/20260527-235903-1779944343-16.0.45-853375270.tar.gz
Finished Local Maintenance
Performing Remote Maintenance
Finished Remote Maintenance
Saving to selected Filestore locations
implode(): Invalid arguments passed
Finished Saving to selected Filestore locations
There were errors during the backup process
	implode(): Invalid arguments passed
There were warnings during the backup process
	The module callback returned no data, No backup created
	The module callerid returned no data, No backup created
	The module calllimit returned no data, No backup created
	The module miscdests returned no data, No backup created
	The module setcid returned no data, No backup created
Generated Backup process result email to [email protected]. Status: Failure

“implode(): Invalid arguments passed” looks like your problem. Check PHP logs for the full stack trace?

Is there a command to run for that? I"m not familiar with php logs.