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 ('b3b34ab0c2782c48b60411f705eb3d98', -1, 1502956976, 1502956976, '36c6b9c3', -1, 0, 0)

Line : 187
File : sessions.php