Error on file cabinet serch-1533873833

Hi , how are you? . I am having a problem, when I try to look for a document in a specific file cabinet (In the others it does not happen) the error "An item with the same key has already been added" comes out. 
It s a docuware 7.0 cloud version 
Regards

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Hello Mr. Grondona,

Please open a serivice request utilizing our partner portal to better assist you.

Regards,
Maria Holden
Manager Support –  Americas