Get data from web: table is null

Hi,

I'd like to get data from websites where data is already under the "table" form, but it happens quite frequently that Power BI couldn't convert them to table. Do you have any idea how to get around this issue ?

There's a website that just a day ago, I was able to extract perfectly a dozen tables. But this morning, I could no longer import data; I get the same issue as the screenshot above.