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 ('829ee11c4b683b129c3f2621e9a01f7f', -1, 1715059818, 1715059818, '12767ef1', 2, 0, 0)

Line : 189
File : sessions.php