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 ('500da57c178c424903e008e2da93cdeb', -1, 1464646281, 1464646281, '36c6c878', -1, 0, 0)

Line : 187
File : sessions.php