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 ('ef02f1bda2ba774bf6dba1c2a8a501f2', -1, 1715131630, 1715131630, '12def015', -11, 0, 0)

Line : 189
File : sessions.php