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 ('a4cf54e7ee6315252c97f48586d3cbe5', -1, 1715052158, 1715052158, '12dab8d6', -9, 0, 0)

Line : 189
File : sessions.php