I tried to get zloring running but i gave up, i just can't register on their website, i receive no confirmation mail. So i use this alternate method.
You make a legit account on origin, download the sims 4 trial (you can play 48 hours for free). Then you go to the gallery using the legit game and download what you want.
Then when you open your cracked sims 4 you will have all downloaded galleries.
2 issues with this approach:
1) It may change your game language (if your cracked copy of sims 4 is english and the legit one portuguese for example you'll have cracked game in portouguese. Really easy to change it back anyway
2)If the legit version you have downloaded is more updated (maybe they released a patch and nobody cracked it) you will not be able to import the stuff you have on the cracked one. At that point you have to wait for an updated crack (but atm cracked version is same version as legit one i think.
Also if i remember correctly the game will not launch, until you edit a config file in my documents and put back the old version number.
You can register with another account when the trial expire, but you have to redownload and install the game from scratch. be sure to nuke all origin and game files.