Issue on register

Hello, i found one Issue on activation key and need help.

When a attempt insert my license key:
failed to register FfileLoadException: loading this assembly would produce a diferent grant set from other instances (exception from HRESULT: 0x80131401

On debug
Initialization [Error] External library could not be registered - Path: bin\SeoTools.dll : BadImageFormatException - Could not load file or assembly 'file:///C:\Program Files (x86)\SeoTools for Excel\SeoTools\bin\SeoTools.dll' or one of its dependencies. The module was expected to contain an assembly manifest.