phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpporta_mainSite/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 ('5eeb770b113f9cca8b64fde6fbd55813', -1, 1436275850, 1436275850, '36a6b2b1', -8, 0, 0)

Line : 172
File : sessions.php