phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './kidnem998/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 ('3c798dc499e5c31fbcb87b4a4850a719', -1, 1481268999, 1481268999, '36cd59c7', -1, 0, 0)

Line : 187
File : sessions.php