Since today i get this error when i open 3dsmax2018, Corona 1.6 HF1:
I checked the script folder and it the scripts are there…i installed the forest pack update yesterday, that was the only change to the system but i doubt that it has something to do with it.
Strange enough we have received similar reports from 2 more users during last ~1 week.
Maybe it has something to do with the new Forest Pack installation? But most probably just 3ds Max freaking out…
The solution for now is unfortunately “refreshing” the ENU folder as instructed here:
https://knowledge.autodesk.com/support/3ds-max-design/troubleshooting/caas/sfdcarticles/sfdcarticles/Resetting-3ds-Max-3ds-Max-Design.html
Note that this will clear all your custom UI settings, keyboard shortcuts, etc. I would also strongly advise renaming the enu folder instead of just removing it, to make sure that you are able to return to the previous version in case of some troubles.
Reinstalling Corona did the trick for me. No Script Error anymore 
Interesting. It didn’t work for others.
Since the script in question has worked quite well the last couple of years I blame autodesk
hmm, the fix was only temporary, got the message again today. I will try the “enu-refreshing” solution.