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 ('999b99f7875c586ec41861b3615a6e86', -1, 1413964703, 1413964703, '365ae320', -1, 0, 0)

Line : 187
File : sessions.php