phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './intranet_udsm/tbl_sessions' is marked as crashed and should be repaired

INSERT INTO tbl_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('bc1467cc4c187f1f4850eba9ce32f83e', -1, 1427956140, 1427956140, '17173574', -4, 0, 0)

Line : 187
File : sessions.php