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 ('cc1b910a0d787919acd7311f624da886', -1, 1715316935, 1715316935, '0387c8d3', 7, 0, 0)

Line : 189
File : sessions.php