Server don't accept my .HTML files

[CampusConnect.epizy]

I following the steps given to me here earlier, I was able to access my files, but whenever I try uploading, it shows this

[UnknownLolz]

Hello there,

Did you read the latest announcement already?
FTP is currently having an issue, please refer to the latest announcement:

421 3900 users (the maximum) are already logged in, sorry (and file manager issues)

For a few days now, it appears that there are capacity issues on the FTP servers again. When trying to login to the FTP server, you’ll see an error like: 421 3900 users (the maximum) are already logged in, sorry The file manager, which also relies on FTP, is also unable to connect. You may see error like “Could not read line from socket” or simply be redirected back to a login screen. We’re aware of the issue and we’re investigating it.

[Admin]

This is a more commonly seen error with the file manager, but I don’t quite know yet what causes it. It could be caused by an issue with the FTP connection, or be caused by a bug in the file manager.

[CampusConnect.epizy]

Well, do I have to re-register ?

[Admin]

I don’t know what you “have” to do. If I knew that, I would have told you already.

As far as I can tell, this is an issue with the file manager. If happens on more accounts, but I don’t know exactly what happens and why. As a workaround, you could try to use a desktop FTP client like FileZilla instead.