Freepbx error while attempting to reload configuration:

A client called to report that they received this error while trying to reload after making changes to their pbx. The error they received follows: exit: 255 Unable to continue. Cron line added didn't remain in crontab on final check in /var/www/html/admin/libraries/BMO/Cron.class.php on line 113 #0 /var/www/html/admin/libraries/BMO/Cron.class.php(180): FreePBX\Cron->addLine('* * * * * [ -x ...') #1 /var/www/html/admin/modules/timeconditions/Timeconditions.class.php(163): FreePBX\Cron->add('* * * * * [ -x ...') #2 /var/www/html/admin/modules/timeconditions/functions.inc.php(193): FreePBX\modules\Timeconditions->updateCron() #3 /var/www/html/admin/libraries/BMO/DialplanHooks.class.php(95): timeconditions_get_config('asterisk') #4 /var/lib/asterisk/bin/retrieve_conf(864): FreePBX\DialplanHooks->processHooks('asterisk', Array) #5 {main}  

We found the solution was to run the following from putty within the CLI:

rm -f  /var/spool/cron/asterisk
 
 fwconsole chown
 
 fwconsole restart