Microsoft VBScript runtime error ‘800a0005’
Invalid procedure call or argument: ‘Mid’
/lib/FileSystem.asp, line 171
This indicates that there is a malformed “embedded code expression block”
This is created using <% %>, and allows access to ASP from within HTML. As a short form, sometimes we disable these by putting spaces in them like this:
< % (something) % >
If this is imbalanced, for example, and either the opening tag has a space and the trailing tag doesn’t, or vice-versa, then you will see this error.