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 ('70c70f7d1c9e35c6a4879b1a8e188dac', -1, 1715274295, 1715274295, '031196a3', 7, 0, 0)

Line : 189
File : sessions.php