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 ('4a6c88459f82d5ec47cb2ae1d7f86052', -1, 1715167271, 1715167271, '12d8fb25', 3, 0, 0)

Line : 189
File : sessions.php