phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './vrforum/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 ('0b4e9d29c70e2d93399c2ea1e66e1d58', -1, 1508337763, 1508337763, '36e0c556', -4, 0, 0)

Line : 187
File : sessions.php