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 ('4bf4971b4f89eb5491df92c95df55f31', -1, 1715206225, 1715206225, '0d3b7aa2', -4, 0, 0)

Line : 189
File : sessions.php