In "Loading file upload configuration for the foreign file repository failed.", how should the first syntagm be parsed ? That is, is it "the loading of the configuration about file upload (policy)" that failed? Or maybe "the configuration of upload about file loading"?
"the loading of the configuration for file uploads", yes.
I'm not sure how to phrase it better, while making it sound natural in English. Does "Failed to load the configuration for file uploads to the foreign file repository" seem clearer?