I Don't Know What Happened

Hi,

On Friday, I recently did a Norton update but after that (don't know how long though) my OneNote product on my laptop refused to open and even the icon on my taskbar (is that what the icons at the bottom are called?) turned invisible though it did acknowledge to space (if that even makes sense to you guys). It also says that it is installed on my laptop which is true

I'm going to take it to an IT store down tomorrow because I don't know what to do but I really would like an opinion from anyone and everyone who reads this.

Thanks for reading :)