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 ('51586cf479cae973e2165df78e6c00d0', -1, 1715121947, 1715121947, '030fc57b', 0, 0, 0)

Line : 189
File : sessions.php