phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpBB/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 ('0b312f27418158496effaa7a061cd769', -1, 1432852562, 1432852562, '36a67235', -10, 0, 0)

Line : 187
File : sessions.php