Why are ASP error messages displayed as questions?

Question

IIS

I am transferring a site from a Windows hosting to a VPS, because I have never done this before, it turns out so-so.
In general, the problem is that script errors are displayed in the form of questions. There are also questions in the IIS log. The scripts themselves are in Windows-1251 encoding.

I specified the code page in the ASP settings, I specified the locale number ...

What could be the problem?

Answer 1

The scripts themselves are encoded in Windows-1251

Convert to unicode.
Since VBScript is mentioned, the question is probably about regular ASP, not ASP.NET