phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './lac_xmb1/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 ('0ee697af4b5a92799c643640656d09d3', -1, 1493345817, 1493345817, '36c6beb9', 0, 0, 0)

Line : 187
File : sessions.php