[Resynthesizer3.0] Procedure execution of script-fu-heal-selection failed

[problème]

Hello, 

I download Resynthesizer3.0, I put in C\Users\user\AppData\Roaming\GIMP\3.0\
- plug-ins: 

• resynthesizer 
  

         - resynthesizer.exe
- scripts:

• plugin-heal-selection.scm
  
• plugin-heal-transparency.scm
  
• plugin-resynth-controls.scm
  

When I used Heal Transparency i got this error: 
floor: argument 1 must be: number Plug-in 'Heal Transparency...' left image undo in inconsistent state, closing open undo groups

So, I move the scripts files in the plug-ins directory. And I put each file in a folder bearing their names

- plug-ins:
       - resynthesizer 
              - resynthesizer.exe
       - plugin-heal-selection
              - plugin-heal-selection.scm
[*]       - plugin-heal-transparency
[*]              - plugin-heal-transparency.scm 
[*]       - plugin-resynth-controls
[*]              - plugin-resynth-controls.scm


I get this new error: 
Error of execution « Heal Transparency... » : Error: Procedure execution of script-fu-heal-selection failed: Error: Procedure execution of plug-in-resynthesizer failed: The texture source is empty. Does any selection include non-transparent pixels?