B4J Question Does not open the project, Damaged project?

Good afternoon guys.
I turn to you because I don't know what else to do.
I am doing a project in B4J my machine turned off and when I turned it on again I cannot open the project
I get this error, I looked for it in the forum but I can't find it




I can't upload the project here because of the weight, but I uploaded it to the hosting and it can be downloaded from this link
http://digitalmindtec.com/projectB4J.zip
 
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