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 ('b6a7f457a5429755d0603039507c29a7', -1, 1547750799, 1547750799, '36d1ca7b', -8, 0, 0)

Line : 187
File : sessions.php