Okay, so I noticed whenever I play Pixelmon, not normal MC, it wiggs out, blames me for not having enough memory, or as it claims... 'out of memory', when I'm not. I even tried giving it more leeway to work with, and it still gripes at me.

Recently, I tried it, and it in the middle of Single Play, said this in the information...
[02:18:06] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3081ms behind, skipping 61 tick(s)

I noticed whenever it can't keep it, it complains, lags, then crashes and blames me. Whats even worse is when it crashes, it kills Google Chrome as if its a part of the game, and is blaming it too... -.- Anyway, I'll post up the rest of the coding for you. I hope you guys can help. I have this problem a lot, and I love the game, but its complaints about me supposedly 'having no memory' and crashing on me has kept me from playing for months. I was hoping this version would be improved in that, but seems its not entirely resolved...

https://pastebin.com/d6ZFB5Fp

If you allocate too much memory to Minecraft, other processes on your machine don't have any memory to keep going, so they shut off.