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 ('2908b54a96d9fa7cef9e929be533d78d', -1, 1715068041, 1715068041, '1275b6b3', -9, 0, 0)

Line : 189
File : sessions.php