Pen on wacom cintiq 16 won't work and it says that the device isn't connected

I need urgent help. My tablet was working just fine yestyrday but when i sat down today to work on it my pen didn't want to work, like at all. At first i tried seeing if everything was plugged in correctly, it was. Then i went to propreties to configurate my pencil, but it showed that my device wasn't connected. I tried cleaning the tablet, it didn't work. Tried changing the nib, it didn't work. I deinstalled all my drivers (idk how correctly i did it), and the I tried reinstalling it (and also downloading the newest drive) and it still showed that my tablet wasn't connected. All of a sudden a message popped up "Unknown usb device needs more power than the usb provides". This never came up while i was using the tablet before (I've had it for almost a year). So i tried resetting my computer again, and after a reset it was gone. I also tried going to device manager (Human interface devices) and the tablet drive support is not there. Also went into serveces and TabletServiceWacome wasnt there (there was however TCP/IP that i restarted and it did nothing, again). I tried pretty much everything and i dont know what to do anymore, I never had this problem before, and again I worked on it yesterday and everything was just fine.

I'm sorry if this post is kind of messy, I'm on mobile. Any help will be greatly appreciated!

P. S. I use a lenovo laptop