Visual Studio error "Unable to locate Visual Studio Installer" "Operation is not valid due to the current state of the object"

Question

I want to download Python Tool. When I clicked Tools -> Get Tools and Features, I also get error "Unable to locate Visual Studio Installer" and I click okay on the prompt there was another error message "Operation is not valid due to the current state of the object".

I tried all of the suggestions from this following thread and the errors persist.

https://learn.microsoft.com/en-us/answers/questions/2139349/visual-studio-cant-locate-installer-or-net-framewo?page=1&orderby=helpful&comment=answer-1903103#newest-answer-comment

Could anyone shed some lights?