phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './tripleac_Forum/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('134daef3d2cb080ab16448df19cae7a8', -1, 1417188901, 1417188901, '36515cae', 20, 0, 0)

Line : 187
File : sessions.php