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 ('1ccac39861856b5d91e5ef1c4ddebd58', -1, 1547750809, 1547750809, '36d1ca7b', -4, 0, 0)

Line : 187
File : sessions.php