phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './mopo_phpbb1/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 ('c9835b0ff99d34701fe59ecf445a214f', -1, 1411119957, 1411119957, '36c4cf37', 18, 0, 0)

Line : 191
File : sessions.php