phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4ad9aec875065c96d5b765b6ee8e93ee', -1, 1715338256, 1715338256, '03908f1f', -9, 0, 0)

Line : 189
File : sessions.php