Assignment to read-only properties is not allowed in strict mode

I tried adding a pie chart to my dashboard, but as soon as I run my query, Grafana sends me to a page that says “Unable to find application file; Grafana has likely been updated; please try reloading the page” and then the below error. Also, here are the results of my query from the Kusto Explorer:

DeviceType count_
Windows.Desktop 472664
Windows.Mobile 12247
Windows 5
Android 21201
iOS 12

And the error I receive in Grafana:
Reload
TypeError: Assignment to read-only properties is not allowed in strict mode

in t
in div
in div
in r
in Unknown
in div
in div
in div
in t
in t
in div
in t
in t
in div
in div
in t
in Connect(t)
in div
in t
in div
in e
in DraggableCore
in e
in div
in ReactGridLayout
in Unknown
in SizeMeReferenceWrapper
in SizeMeRenderer(Component)
in SizeMe(Component)
in e
in div
in div
in div
in t
in t
in div
in div
in e
in Connect(e)
in Suspense
in t
in Unknown
in Unknown
in Unknown
in Unknown
in t
in t
in a