patchy-1.1.jar

Hi!

I need urgent help, for more than a week this error message has been released from the minecraft launcher, I couldn't play and I am worrying.

While downloading I got an "error downloading a file", 

 but now I get patchy-1.1.jar and I am confused, I have not uninstalled any internal files or touched any important files, I am confused and need help as soon as possible, please, I want to play minecraft. 

(In the captures the errors will come out in Spanish because my language is Spanish, I need help anyway and I hope they understand.)