phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './nwforum_1/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 ('9c2b55bb501da4f8554642bc03978775', -1, 1558465434, 1558465434, '36a72ff8', 10, 0, 0)

Line : 187
File : sessions.php