I've been using the LP Firefox plugin without any problems for some time. As of a couple of days ago, though, I get an error message off and on -- mostly on -- that says "An error occurred while attempting to contact the server. Please check your Internet connection" even though there is actually no problem with my internet connection. I'm not sure, but I think this started when Firefox was updated to 56.0. Are others experiencing this issue? Anything to be done about it?