Internal Server Error (Probably Memory Issues)

[n0b0t]

So, one of my subdomains is down (my forum) and one other website that is just a normal extension of the other is also down. [removed website URL] The forum is SMF and PTUT is just a website connected with a MySQL database for purchases that are connected with games. Both use HTML, PHP etc. When I check my cPanel errors, I get this:

[:error] [pid 135236] (12)Cannot allocate memory: [client XXX.XXX.XX.XXX:XXXXX] couldn't create child process: /usr/sbin/suphp for /home/cXXXXXXX/forumstuff/index.php, referer: [removed website URL]

Is it PHP, memory issues, or what? I can't really wrap my head around this and I'm sorta a noob at this stuff.

 

[cPanelMichael]

Hello,

As a website owner, you may want to report this issue to your web hosting provider so they can take a closer look. It looks like a memory limit issue, which could stem from your website using more memory than is available to your account.

Thank you.