Yeah that's been happening for the last few driver versions occasionally. It's tied to the AMD updater thingy, pops up at midnight. You can just close it, it doesn't rerally do anything when pops up.
I've been wanting to make a topic here about how could this be disabled but keep forgetting 😄
So, if anyone knows how to stop this I (and probably OP too) would appreciate it. It's not a big deal but sometimes interrupts a movie if I'm watching something around midnight and it pops up.