problems with forms

Hi guys
I have a wierd problem i have never seen before .

Im testing if i can get ultimate member to work with geodirectory . ( I know you guys doesn’t support this natively )

I have installed geodirectory on https://wcoevent.dk for now and afer that i installed the surpreme theme and ultimate member .

When i try to enter data into a form like : https://wcoevent.dk/register/ i cant write in the fields of that form . i tried to change it to a few of the other themes you guys have , and the problem went away .

So now i have a theme conflict i can’t seem to figure out what to do with, google console doesn’t give me any errors .

do you have an idea to how i can solve this , or how i do a proper bug test on the theme to find the culprit

It only happens in the directory starter theme and in the supreme theme .

thanks for the help in advance