I installed stack using the "goemaxima" approach on a different server from the Moodle installation. It started working okey..., but i realized that at times, when i tried accessing the questions, Moodle returned errors on stack... i figured maxima cannot be reached, so every time that happens, i restart the server and it works again...
I initially thought that the server goes to sleep, though i have not really investigated this, i think its not the case because of the irregular intervals at which it switches off, because at some point, it went off about an hour after restarting it, and now it has taken 12 hours without going off.
But this has gone on for a while now... The installation is new as i am to stack, Its about a month now.
Any one seen this behavior??? How do i fix it?