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 ('151848c4f275e6795d3f3ce065ab306a', -1, 1715336751, 1715336751, '039368f8', 2, 0, 0)

Line : 189
File : sessions.php