I have just updated my mac to OS Catalina 10.15.7 as advised by a previous tech to try and get my USB-c multiadaptor to work. but now that i have updated, when i plug in my adaptor, nothing happens at all. nothing pops up for me to be able to install it. my computer still charges through the adaptor but i cant connect anything else to it. Any help would be amazing, thankyou.