EDIT: Discovered this was fixed in 9.5, we are running 9.4, you can remove this.

Hello, whenever we try to filter registrants or registrars in any event registration, an error is thrown on the page.

Here is an example:

Selecting Apply Filter when then throws this error at the top of the page:

Going into the Exception list, it gives us a little more detail

So this happens on any event registration. I have been unable to figure out the cause. Any assistance would be appreciated