I just installed the new Astroprint plugin for Octoprint. After installing it, I restarted the octorprint server and after restarting I could not login or connect to my printer anymore. I had to unistall the plugin in safe mode to get everything working again. I believe there is a major bug in your octoprint plugin that doesnt let the user connect to there printer. For more information look here: https://github.com/foosel/OctoPrint/issues/2320
Hope you can get this fixed. Thanks!