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 ('63ab2649511db27b5eb73270d2cac91a', -1, 1715316936, 1715316936, '0315a257', 0, 0, 0)

Line : 189
File : sessions.php