I have the same problem with folder2ram
Did you fix it ?
Hi, Yes.. it was a problem with my email config. I have configured "aspmx.l.google.com" and it was logging a lots of error - probably because I have installed pi-hole so it was blocking some domains. I switched to the normal "smtp.gmail.com" and everything was back to work normally.
I am not sure if it's the same in your case. You should monitor the config log and check what's logging and you can understand what the service is causing it.