load the assembly error

Hello, today I suddenly try to load a robot that stopped correctly the previous week and I get the following error:

"it is not possible to load the assembly"

I try to install it with a different name and I get an error:

"An item with the same key has already been added"  

 

but there were none previously. Everything looks like a registry key error.

How can I clean those keys?


of course I compile the robot in Visual Studio and there is no error

regards