Why does the site not work when navigating through UTM tags?

Question

htaccess

There is a site on wordpress - https://grafika-art.space/
When you try to go to it through UTM tags, the site does not open -

https://grafika-art.space/?utm_source=vk&utm_medium=ppc&utm_campaign=konversii&utm_content=video-grafika

It just gives a white screen. I


reviewed the documentation with redirects, tried different options for going to the page for removing utm. but nothing helps ....
What could be the reason for this problem?