Hub domain settings: previously used Site URLs not available

[AlexanderSt__John]

In ArcGIS Online, I have created Hub sites in past and then deleted them. Later, I create a new site and want to give it the same Site URL that I had used once before on the now-deleted site.

I get the error message below of "You already have a site that uses this subdomain."

Is there a way to "clear the cache" or something like this in the Online organization so that I may use that Site URL again?

[JenaLisa]

I'm facing same problem. Please also guide me about this issue.