Visualization from ConceptStation error

Visualization from ConceptStation error when LumenRT starts up. I had ConceptStation files that were working, and LumenRT files that were working, but after a recent error, all of these files (.lrt files) will not open. Additionally, the ConceptStation "Visualization" initiates the same error upon LumenRT start up. I already have a lot of work done in ConceptStation, and had a little bit of work in the LumenRT file(s), so I don't want to start from scratch.

I have tried to SaveAs for ConceptStation, .bak files for ConceptStation and LumenRT, restored previous versions (that were otherwise working), etc. All files were working fine until ConceptStation crashed yesterday. After that, all files associated with the project would not open in LumenRT (including new exports to Visualization in LumenRT).