Can't update world to latest version

[Mazeratti]

I have my tekkit world on version 1.1.10 and I can't open my world once I update tekkit to a newer version.

It launches fine for the loading of the main menu but when I try and load my world it warns me about the ID mismatches (I clicked yes obviously) then it displays this in the console

[iNFO] [ForgeModLoader] The state engine was in incorrect state ERRORED and forced into state SERVER_STOPPED. Errors may have been discarded.
[iNFO] [ForgeModLoader] The state engine was in incorrect state ERRORED and forced into state AVAILABLE. Errors may have been discarded.

before it stops and takes me back to the main menu then on the second try it displays the same messsage but instead goes to not responding and stays like that until I close it.

It might be worth mentioning that I originally generated the world with a server (Version 1.1.10) and then I moved it into the single player save file.