The FTP is back!
Added 2020-12-08 23:16:19 +0000 UTCSorry for the delay, all - had to contact my ISP's customer service in order to sort everything else. Turns out they block incoming FTP by default...
Anyways, you should be able to access it again with the same credentials as before:
Server: forus.pidgi.net
Port: 25151
Encryption: Explicit TLS/SSL
Username: pidginetguest
Password: pidgiwiki