EA wont let me buy Jungle Adventure

When I played the sims on windows, I got the Jungle Adventure game pack for free through connecting my ea account to epic games. When I switched to mac, it was missing. I eventually figured out that I no longer owned it because epic games is windows only, and just decided I just didn't need it anymore. 

However, months later, I want to buy it and I can't. When I try to pay, an error occurs and a message saying, "that didn't work, let's try again. If the problem persists you may want to use a different payment method or try again later," pops up. I assumed it was just a bug in the ea app, but then I tried buying a different game pack, and that purchase went through perfectly fine. I only get that error when I try to buy jungle adventure. 

I'm assuming that this is because when I'm in the sims 4, the game still believes that I own jungle adventure, but I don't know any way to fix this issue. It's really disappointing that I'm not able to buy a pack, especially since it was a pack that I once owned for free. If anyone knows anyway I could possibly fix this, please let me know!