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 ('d50ef60eb9dfb19f1950e970dc53794a', -1, 1715011987, 1715011987, '12bcafb6', -2, 0, 0)

Line : 189
File : sessions.php