Question about Google Calendars

Hi everyone. I do not have an IPhone myself (Love my IPad Mini, though...well, except for the keyboard but I'm going to let sleeping dogs lie on that one) but everyone at my job does, including the manager who does the schedule. Now the whole county system uses Google Calendars to share their schedules with everyone else so everybody's hours are their in case coverage is needed. Now several months ago, someone else had been doing the schedule and they had an Android phone, same model as me, and I had no problems getting it. My boss then took over the schedule and she has an IPhone and ever since then, my phone will no longer load the schedule. Everyone with an Apple has no problem recieving the schedule but, no matter what I do, my Calendar won't load it and since it's a Google program I can't just delete the app and start anew. Stupid hardwired program crap. I can diasble/enable it but that does jack squat. Now we get to my point...do any of you techheads know of maybe an update that Apple (or even Google) might have done to throw a wrench in Calendar for Android and Calendar for iOS shaking hands properly? If one did happen, it would have been in the last six months. Come on, guys and gals, can you help out an old android user who is really at a loss because Google's help function is being waaay less than helpful. As usual.