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 ('6091de7d2e7b6fcf8ce155f821a5f33f', -1, 1715316674, 1715316674, '12def015', 4, 0, 0)

Line : 189
File : sessions.php