Item lists not being saved.

I've had this happen so many times I'm sick of it.

Yesterday or the day before I decided to finally make item lists for all of my characters for the ARAM map. So I made like 20 to 30 items lists and saved multiple times during making them because it took a long time. But what do I see when I log in just now? Its all gone, all that work for nothing.

I'm sick of this shit Riot.