Hey guys will you have office hours on Monday June 6?

Hey guys will you have office hours on Monday June 6? I'm struggling with Business Hangouts. I can't seem to get my pdf to load, and I also tried sharing my powerpoint and that doesn't work either. I'm really struggling. :( And I'm pretty sure it's not supposed to be this complicated. At my last Business Hangout my viewers said they were seeing a black screen on youtube and then had to log in a different way, it seemed to work with Twitter. Not sure if I'm doing a whole bunch of things wrong. Thank you!