Here are some new actions to consider:
I have re-installed Chrome using the latest version (same as yours) and there was no difference with the new installation, i.e., it produces the error depicted in my previous attachment.
Using Chrome I get the same error on four different Joomla sites using two different desktop/laptop machines. Those four sites are running Joomla 3.9.5.
However, I have one site still running Joomla 3.7.5 and it does not produce the error using Chrome. It performs in all respects as it should.
The error is produced whether I select SCP from the main Components menu pull down or from the Control Panel SCP Pro Info Module.
I will examine the console report in the morning (U.S. time) and let you know what I see.