Can't publish events, screen freezes

I can't seem to publish any events. And for some reason, events that I initially was able to create, and then later deleted, are still popping up on the calendar.

My publish button for new events is grayed out, completely unresponsive.

How can I fix this? What's going on?! Nothings been changed, this happened after creating a few events, canceling them all to start over, and then BAM...useless.