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 ('fd293c54faf81e82b0b2e132548f761f', -1, 1472562255, 1472562255, '36e10683', 0, 0, 0)

Line : 187
File : sessions.php