phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './lockedi_LIL/pn_session_info' is marked as crashed and last (automatic?) repair failed

INSERT INTO pn_session_info SET pn_sessid = '5c1e4468fb389ffe33ca641dfcfeee89', pn_firstused = 1490350075, pn_lastused = 1490350075, pn_ipaddr = '54.205.172.57', session_page = -4, session_logged_in = 0, pn_uid=1

Line : 74
File : sessions.php