phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './thewi_at_klaus_phpbb_8/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) VALUES ('e9ef781fd4f4fef18397a461783bf12f', -1, 1435994240, 1435994240, '3650e828', 5, 0)

Line : 189
File : sessions.php