It seems to be something with network access that fails. Are you behind a web proxy or using a VPN?
You might also try to start AxCrypt with the –offline switch. Run a command like the following:
This will disable all network access (permanently, until you re-enable it from the menus).
It would be good if you could check the Event Viewer also for any more events related to this. It’s something that is wrong with your PC environment, at least to the extent that the AxCrypt code does not handle it properly. The stack trace you showed, if it is relevant to the problem, does indicate that the exception is handled though, so it’s a bit unclear.
Thank you for working with us to resolve this.