Windows .exe can't figure out what the deal is.

[GunstarRed]

http://pastebin.com/A3rqaMHH

my crash log for anyone who can help.
here's the deal, im trying to join my server's FTB and when i do it works normally.
we updated to 1.1.6 recently, and enabled plenty o biomes. now it won't work.
any help would be appreciated!

 

[lavarthan]

(The requested operation cannot be performed on a file with a user-mapped section open)

This error is often caused by an antivirus program being overly zealous. Try adding an exclusion to the launcher folder in your antivirus program. In your case it is 'C:\Users\Nico\Desktop\New folder\' Be sure to check any box that says include sub-folders so it will apply to each of the mod packs. The other possiblity is a backup program was trying to backup the file while the game was running. In that case you need to stop the backup program from running while you are playing the game.

 

[GunstarRed]

that fixed it! thanks!