Auto-Updated Session in Hosting server.

There is no problem to use session in local server.
But in hosting server, whenever refresh, session data is changed with encrypted data( I can see decypted data in local).
http://joxi.net/zAN9okahl376Z2
when session data is changed into decrypted data after 2-3 times refresh, session is removed automatically and sign out.
So if I click link of page 3 times, site is logged out automatically.