Origin won't run on my Macbook OS X 10.8.5

I have a problem. I have had the sims 4 since it came out on the Mac. My macbook air is really old like maybe 7 years old. It has barely any space so recently I deleted my sims 4 and origin. Fast forward to today where I actually want to play it, I had to get everything back. I had to download an old version of Origin because my macbook didn't reach the requirements. I got everything to work and everything is downloaded. Now I have waited for 3 hours for it all to work. I click play and this shows up:

Unable to start:

Origin is currently not running. Please make sure that Origin is running before attempting to play The Sims™ 4

[d3382ced:984c6a38:00000001:00000000]

I don't know what to do. I have tried looking in the forums but, I haven't found anything that could help me. My Macbook is version OS X 10.8.5. I can't update this old macbook so that isn't an option. Please help me out.