I'm sorry to hear about Dennis, I hope he's doing well wherever he is.
Wolfram is broken. Keeps throwing this error:
Wolfram Language 12.0.1 Engine license you are using has expired. Please contact Wolfram Research or an authorized Wolfram product distributor to extend your license and obtain a new password.
Please note that somewhere for Dennis when he returns. I appreciate very much the work he's put in already.