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 ('5f036f6adbb6b5ee9525d35aff7ec4b1', -1, 1715306461, 1715306461, '0385579c', -8, 0, 0)

Line : 189
File : sessions.php