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 ('cd76c872926d5d912c949ba8f6269a87', -1, 1417137260, 1417137260, '36e329f2', -1, 0, 0)

Line : 187
File : sessions.php