phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './kidnem998/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 ('1a3963b4ad060b21bbaaac9e2761c0ec', -1, 1475272850, 1475272850, '6b15958e', -1, 0, 0)

Line : 187
File : sessions.php