I’m commenting as the 2nd party in this (I’m IT and it is one of our Designers who is actually is having the issue). User is having the same error. He’s running Windows 10 on a fresh install of Sketch Up Pro 2018 in New York. Error appears to come from 3Dwarehouse.sketchup.com. He’s not using any components from the 3D Warehouse and is using our in-house designs which are all dynamic components.
I will point him to this thread and see if he may be able to assist if you still need to do a live session with someone. Hopefully this helps