IF YOU ARE IN THE RUSSIAN (RU) SERVERS, CLOSE THIS POST. YOU MAY GET BANNED FOR FOLLOWING ANY STEP DESCRIBED HERE. If you have any of those symptoms, as of version 188.8.131.52, there are 2 solution to fix this error (for supported regions). (If you have an older version of BnSBuddy, UPDATE IT)...
I won't give you a warning because you're asking for the video. (Despite the instructions being copy-paste)
I'm closing this as no new information will come from here.