This is the email I got for a similar problem.
Extract:
Hi Eric,
To get rid of the 380 error you need to perform the following:
- Using regedit.exe application delete the key:
[HKEY_CURRENT_USER\Software\PIC Simulator IDE]
(regedit.exe can be found in C:\WINDOWS\ folder, or you can
run it with the Run Start menu command by typing regedit.)
Now, please install your license again using the instructions
from the official license e-mail.
Stay well and best regards,
Vladimir