Error Code :
*Fatal error*: Allowed memory size of 16777216 bytes exhausted (tried to
allocate 77824 bytes) in crm/cache/modules/ProjectTask/ProjectTaskvardefs.php*
on line *342*
Increased the memory_limit value to 128MB which should be more than enough
for the script, if it still errors out then it's an issue with the script and/or
software application I'd say, have the user check the server requirements for it
if this happens again.