Also help on why my thread is just saying "left"
Put your spoiler here.
need a crash log or server log, otherwise its all guesswork, use paste.ubuntu.com to post the log
Ive made the Paste. account and downloaded the text. Now what?
you just needed to post the log to the paste.ubuntu.com page, click paste, then post the link to it here, no need for accounts or anything else
That should work...
Contact your host and ask them for assistance.
If you are still looking for some assistance with this problem, I noticed you are attempting to use a custom JAR. Is this on purpose?