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 ('8e1303dbce2ac8365e218f0d10564676', -1, 1413935744, 1413935744, '36e2fc8e', -1, 0, 0)

Line : 187
File : sessions.php