I know your problem with a high probability as I had something very similar with PerMa aswell as with ASIS
1) Go to Mod Organizer and click the gear wheels 2) Click on ASIS (same applies to the PerMa patcher, this is why I know the problem aswell as the solution) 3) In the "Arguments" line, add -Xmx1024m -jar BEFORE the path to your ASIS file 4) Add "-NOSTREAM" AFTER the path to your ASIS file 5) Run it again and be happy that Java isn't running out of memory anymore
This is how the entire "Arguments" line should look like in the end: -Xmx1024m -jar "C:\Program Files (x86)\Mod Organizer\mods\Perkus Maximus - Maximum Perk Overhaul\SkyProc Patchers\T3nd0_PatchusMaximus\PatchusMaximus.jar" "-NOSTREAM"
Just adapt the path to your ASIS file and you should be fine. At least I hope so.