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 ('1c2e0ee115a1e8a1b698d35be5c8520f', -1, 1715052256, 1715052256, '03864c33', -4, 0, 0)

Line : 189
File : sessions.php