I have made a cms using codeIgniter and we are facing the issue of data loss while adding and updating contents. Previously it occured while editing the data session gets expired and i got logged out . we have been using session based login . it happens randomly. also we are unable to reproduce because it happens only sometimes.we are using mysql as our database. it happens only on our production server not on local or dev.can you guys please come up with some suggestion on this.this is really very urgent?