I cant download world

And so ... I can not download the world from an aternos, for entering some data.

After clicking the "Download" button, the download of the world starts to go on endlessly, showing the percentage of download 0%.

When I decided to wait, the file size exceeded the size of the world itself (World - 300mb, file - 450 + mb)

Pressed 50 times

I waited more than half an hour

The blocker does not cost any, in the latest version: Opera MX

Such a problem is only with a jump in the world, with other Internet files everything is in order

Emm...Backup copy?

I figured out the world, but now I have a different problem, I can’t upload the world to the server, it stops at 60-70% and gives an error 198

I haven’t seen such an error anywhere and I was not able to search for information

My world has a volume of less than 5 mb, but still this error appears,

I used Opera MX and Microsoft Edge

I'm trying now through the phone's built-in browser