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 ('274f2f7f4256462cfa160c15d9e4c415', -1, 1715048949, 1715048949, '1277ac92', 8, 0, 0)

Line : 189
File : sessions.php