To see what processes were ran on your documents, you will need to navigate to the document detail page of that specific document. In logicbroker, you can view details of your orders, shipments, and invoices.
You can get there by searching the document # in the Search Documents field at the top of the page. Searching PO/Order Number will return all documents with that number.
Once you find your document and are on the Details page, scroll down to the bottom and expand the Document Processing History panel. Here you will see all history processed on the document. This will help you narrow down where your document has failed and/or where the document was processed to.