Disappearance of the table.

This is by design. Using the Developer Tools you will see that under 920px width some elements are set not to display:
https://pasteboard.co/zfxx9WFtJXKe.png

You can override those styles via CSS too.

Ah understood. I should remove the none. What should I put in his place?

Replace the none with block !important;

https://postimg.cc/CZqBG6Dm

Should such a thing come? What should they appear in that table? Numbers?