Export products to another box

In your automatic actions once an hour is "Upload and process supplier price (Bazzilla)" this action refers to an xml file, for this type of files you should not use this action, for example Universal import of products (xml / json)
Because there is a file, there is an attempt to load it (due to the wrong format / settings it is not loaded at all), then at the end a processor will be added to recalculate the availability of goods. On grudnichok, the product is not in stock or from the supplier and as a result it is put out of stock