Hi,
yes you are right. Minehut relies on a service which is not reliable anymore.
The problems have been going on for months and storj.io cannot fix them.
Maybe it will work tomorrow, or next week, or next month, or even never.
Minehut can do nothing but change the file hoster, maybe file.io is an alternative. File.io is already recommended by minehut for uploading files.
Maybe they can change the file hoster in the "/dl" command. File.io can also adressed by the "curl" command.
The next alternative is to host the file server be themselves. The source for transfer.sh is free of charge on github.
Greetings