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 ('b1da3c49e2f4d3ff3edaa082e4bd5a9a', -1, 1715326170, 1715326170, '12df7711', 7, 0, 0)

Line : 189
File : sessions.php