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 ('ed1a1db235aa4d30a51dc15c3e175bba', -1, 1502956957, 1502956957, '36c6b9c3', -1, 0, 0)

Line : 187
File : sessions.php