Two errors

Howdy, TAPAS folks, A few days ago I created a collection and uploaded some files associated with a document I'd like to publish. I'm trying out the site because I'd like my students to use it in a class I'm teaching called "Digital Archives and Editions." I'm still getting two error messages: one saying "Could not find a TAPAS Generic representation of this object.Please retry in a few minutes," and the other saying "collection_dids references collections that do not exist." (Though with respect to this latter message, the file does in fact seem to show up in my collection.) Here's the file: Thank you! Matt C.