occurs "AD Administration error" when i update snapshot

 ours is upgraded to EBS R12.0.6.

then,apply patch 7665691 and 7533081.all above is  successful! 

next ,when i execute "adadmin" ->[2.Maintain Applications Files menu] → [4.Maintain snapshot information] → [2.Update current view snapshot] → [ 1.Update Complete APPL_TOP]

after about 8 minutes,the errors occurs like this below:

AD Administration error:
Error while executing statement

AD Administration error:
ORA-00600: internal error code, arguments: [kdddgb5], [4294967295], [0], [], [], [], [], []
ORA-06512: at "APPS.AD_FILE_UTIL", line 1357
ORA-06512: at line 3

can somebody help me ? i can't resolve the problem.