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 ('c6a463469a86c97f9d15e5b32eb25bb6', -1, 1485079923, 1485079923, '3693f49d', -1, 0, 0)

Line : 187
File : sessions.php