Thank you very much. I have checked the permissions on the cache folder and they seem to be correct. I tried using the clear cache options under site admin and they did manage to update the files on the cache folder but the problem still persists
This happens to us on a regular basis (once a month or so) in 2.4.8. It is fixed until next time by clearing the template cache (and maybe the data cache) as site manager. It would be nice to know why it happens so that we can fix it.
The likeliest cause I can think of is something outside of OJS modifying your cache files. I would suggest looking at the modified cache files before clearing them to see if that reveals the cause, e.g. if there’s spam content in those files.
Regards,
Alec Smecher
Public Knowledge Project Team