The error unarc.dll returned an error code -11 is a generic decompression failure. It occurs when a setup program (usually a repack from sources like FitGirl, DODI, or similar) cannot correctly extract game files. Code -11 specifically indicates a data corruption or CRC mismatch during decompression.
Computer Science, Information & General Works 
Philosophy & Psychology 
Religion 
Social Sciences 
Language 
Pure Science 
Applied Sciences 
Art & Recreation 
Literature 
History & Geography