Game goes missing from origin library
Hello.
I've bought TheSims4 a little more than two years ago in a store. I've loaded the disc and was able to successfully install and play the game. Some time in 2016 I stopped playing for a short while. When I wanted to play the game again, I had to update origin. After the update was complete, I saw that origin got a completely new look since I last launched it. I also noticed that TheSims4 was gone from my game library. I still have the game downloaded on my computer, but every time I try to launch it it just launches origin and tells me I have to activate the game. I tried to do it with the old product code, but of course it didn't let me do it since the code has already been used.
TheSims4 is the only origin game I have and so it is the only one that dissapeared.
I hope I supplied enough information and would gladly appreciate your help.