USB-C not working at all

Hello everyone, 

I hope you are all doing well. 

I am using a Lenovo Thinkpad USB-C Gen 2 station to connect my DELL G7 17 7700 to my keyboard, mouse and screen. 

It worked absolutely fine until this morning when I did a bunch of updates recommanded by DELL... Now, the USB-C is not recognizing anything anymore. It's as if it shut down. 

When I use a USB-C to USB adaptator on my station and connect it to my Laptop, it recognizes the USB(mouse and keyboard) but not the screen on the station...

Could anyone assist me in having my USB-C working again as it used to this morning ? 

Thanks a bunch, 

-Iljhan