phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './chronusforum/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 ('9d5505e2fa5365b661d0d1f580f66874', -1, 1547751089, 1547751089, '36d1ca7b', -4, 0, 0)

Line : 187
File : sessions.php