Just tried it in Sketchup 2021 which I haven’t touched for a while and I’m also getting a Bugsplat with 3D Bazaar.
Update: Uninstalled again and manually installed Skatter 2 without the 3D Bazaar rbz and then installed 3D Bazaar from Extension Warehouse. Bugsplats stopped but getting the same error message in the Local folder. Marketplace works fine.
Update 2: Bugged out in SU 2022 and 2021 when downloading Skatter free grass.
Fixed it by deleting “C:\Users\USERNAME\AppData\Roaming\3DBazaar” which I thought I tried that already. Reinstalled 3D Bazaar and it gave me a bugsplat which I suspect is Vray 5 but when I restarted SU it was back to normal.