Unfortunately, we were unable to reproduce the issue, I was able to create the staging site without any problem, you can see the result in the below screenshot.
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- Are you using this application in a Cloud Provider (AWS, Google, Azure, ...), in the native installer (Windows, Linux, OS X) or in a VM?
- Which exact version of the application are you using?
- Have you installed any plugin (apart of WP Staging) or modified any configuration file?
- Which steps did you take in order to reproduce the error?
- Can you copy/paste the full error? In the screenshot is cut
Carlos R. Hernández