SSH Buttons widget - exception throws after first successful execution

[barser]

For example there are three buttons with primitive shell commands:

All buttons are configured to show its result in toast

After executed button "uname -a" there is successful result. But after that when pressing any other (or previous button again) there is an exception:

[zobnin]

Wrong repo. Right one: https://github.com/zobnin/aio_ssh_button_plugin