DNS over HTTPs not working for site

Using Firefox 122 on Linux when I go to Survey it does not ocmplete. when I turn off D.O.H. it works. Your status site shows my area as operational. what could be the problem?

I found the problem. It is not related to DOH.
It has to do with firefox on Linux cache directory for Firefox located in ~/.cache files some how corrupted that one site, even though firefox components where all removed.