issue importing to protege

[luisenriqueramos1977]

Dear friends,

I am trying to import the gts.rdf ontology into protege. When I do it I obtain many error classes named from error1 to error40. When I try to run the reasoner as well, I obtain the following error:
UnsuportedOperationException: null

I also downloaded and saved the file, with the same result, that is appeared many error classes, and it result to be inconsistent.

Best regards

Luis Ramos