phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './myforum/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 ('279a5335c0bb3e830d39a8f5205a7d27', -1, 1777159651, 1777159651, 'd849d845', -2, 0, 0)

Line : 187
File : sessions.php