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 ('bccc3f8d3bd0a5fb95b12b0f2bdee7e0', -1, 1715019719, 1715019719, '12de7885', 2, 0, 0)

Line : 189
File : sessions.php