[R] problem with package

[Lucas VIGNON]

Hello, 
I don't know if you can help me, but I have an issue when i try to install a package and launch it. 
You will find a picture of the screen and the messages that R returns to me. 
I don't understand what's is wrong and what should I do to make the setup of the package sucessful. 
I hope you could help me, 
Yours faithfully, 
Lucas Vignon  		 	   		  
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