Done Crashing everytime i log in

I recently made a portal to the last millennium and crashed when i first went in it but was able to stay in for about two - three minutes after next login before crashing again i crashed about 3 - 4 times in total and when i decided to go back to the overworld by right clicking on it again i crashed as i thought i would but now i cant login for more then a minute before crashing.
also i thought id mention this while i had the chance i was playing on the server and i had a scythe from thaumcraft with soulbound on it i died retrieved my stuff and it was nowhere to be found

Spoiler: Link to the pastebin with crashlog

 

Same issue, but I couldn't even move to click the portal to leave after reloading.

Would love some help, as I really want to play.

 

It looks like you might have a corrupted chunk, but I don't know for sure.

 

Do you know someone on the forums that would have a better idea?

 

Some more experienced players, and some staff. The best thing I can say is just wait.

 

okay so i was able to join the server just fine but when i did i died in the void so would it be safe if i tried to go back and get my stuff or would i crash again?

 

okay i did and im not thanks for the help