Any of you guys experience when installing Wheelman (BLES00480) Game Data?

When you go to Game Data on xmb the Wheelman game data size listed as counting (not the actual size) And when i try to delete it , it will freeze the PS3 But the game still playable with this counting game data.

My PS3 is 40 GB using hermes v4 spoff 3.55 with external HDD.