You can grep for 'fsimage" or the "current" word so that if there is any entry for file deletion then it might be logged in there.
Also as it looks like your "fsimage" file is missing so i do not have any option right now to fix this issue until we have fsimage backup stored somewhere which we can restore. (Else we are in Data Loss Situation)
@Jay is it possible to find other file fsimage from other cluster and use it on the problematic cluser ?
so I am really not understand who can delete them , only root can delete them of maybe from hdfs user ? any chioce to recover them ?