Hello @mjoyce, is there any configuration in config.inc.php useful as bellow:
; These are paths to (optional) external binaries used in
; certain plug-ins or advanced program features.
; Using full paths to the binaries is recommended.
; perl (used in paracite citation parser)
perl = /usr/bin/perl
; tar (used in backup plugin, translation packaging)
tar = /bin/tar
; egrep (used in copyAccessLogFileTool)
egrep = /bin/egrep
; gzip (used in FileManager)
gzip = /bin/gzip
Thanks for your support.