I'm sure you have the same problem as mine, which I've asked in the few pages before. You probably missing the required necessary plugins. Could be nice to know what is the "etc" in your error.
Here is the answer from @sheson
Also, in my case, it was due to Beyond Reach is outdated, so I updated it and the mesh has been updated, so the issue went away.
P/s: Today due to some mods, I had to re-run DynDOLOD again, and I STRONGLY recommended to completely disable OpenCities and ALL the related patches, as well as clean all the plugins with SSEdit. Otherwise, I got many different errors which I honestly have no idea how to resolve.