There is a flashing question mark at the top of my screen, and it won't go away. When people send me invites, there is an exclamation mark as well. I can't click on them, and they don't ever stop. I noticed the encyclopedia was flashing, so I clicked it and then after that it I could click them and it worked. But later it happened again, and now nothing else on my screen is blinking and I've clicked almost everything. I tried searching for this, but I didn't get any results, so if this a re-post I apologize, but could someone give me a hand?