We had a bunch of pages of diagrams/flowcharts made with diagramly, but the plugin seems to have "disappeared", and with it our documentation. It looks like that plugin has been superseded by draw.io, and I'd be fine with buying that, but the fact that our documentation has "disappeared" from our server just in time for audit season is a bit unnerving.
Is there a way to get back those diagrams after we purchase draw.io?