phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '05f9cdc9d9f19595f1ae15f5e343e069' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('05f9cdc9d9f19595f1ae15f5e343e069', -1, 1773348477, 1773348477, 'd849d888', -4, 0, 0)

Line : 187
File : sessions.php