Same here. Four days ago after upgrading, the plugin stopped working. I tried the No panic button, deactivated and activated the plugin again, no change. I then tried several different versions (didn’t work) and downgraded to version 3.5.5. It’s working but I liked version 4.3.1.1 better. The message in maintenance was 211. My last records were from 25/04/2016. My website URL is https://kazer.bg. I hope it works again because I find Slimstat really useful. Thanks.
