Cannot open Form Setting when I was trying to switch back to the original SharePoint new item form

[Yumiao22]

Hi,

I was trying to switch back to the original SharePoint new item form instead of PowerApps customized form, when I clicked on form setting under list setting, it gave me an error message saying "Sorry, something went wrong

A file or folder with the name Lists already exists.

"

I'm looking for a way to either fix this error to open form setting or to switch back to the original SharePoint New Item form without form setting.

Thanks for helping!

[#2]

@Yumiao22 Try opening the form settings page using direct URL in below format: 

https://contoso.sharepoint.com/sites/SiteName/_layouts/15/FormSettings.aspx?List={f608be74-6aeb-4768-a957-04fb7ac1a877}

Where "f608be74-6aeb-4768-a957-04fb7ac1a877" is GUID of list which you can get from list settings page.

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[#3]

Hi, thanks for your help, I tried the URL and changed the GUID but it will be directed to a page saying "404 FILE NOT FOUND"