@esmi, I’m a little confused. I clearly know that this isn’t my topic, but I think that the issue that I pointed out is related to the problem that these individuals are reporting. I would venture to guess that if they recently installed this plugin, and they navigate to the “groups” tab within the plugin, they will find that no groups were added automatically. If this is the case, then I would tend to think the fact that no groups exist is the reason they are receiving the “Invalid group when creating redirect” error.
I might suggest that these users simply add these two aforementioned groups themselves, but since I am not the plugin developer I can not attest to if those groups are granted special functionality within the plugin that is now missing since they were not created when the plugin is installed and activated.
However, thanks for pointing out the forum rules. That was very helpful in trying to solve this issue.