Thank you @Ktarian - again, maybe I'll ask you help - there are so much steps to do.
Sfortunatelly in RL are more things to learn (but fortunatelly that make us alive) and I've had to learn now, how to uninstall from my PC malware shipped with Java updates and remove hijacked updater of Mozilla browser (with payed Kasperski antivirus still working on my PC and I'm scanning each thing downloaded + still unticking unwanted stuff on installers). I have learned too, how to make use treeaq and buzzler's script EA's decorative objects and it becomed now my obsession - cloning many files in game, editing ... and then it works as miscelaneous storage, box of seeds or treasure box .... if you want, I can explain you .... seing, that you are able with S3PE.
I've seen you in ciane's topic - if you think, that I can help you with reinstalling store stuff, just call me - I'll do my best. I've finished to install my store stuff 15/02/2017 and I've used Sims3Pack Cleaner for get rid most of set-headers in all Store content - because those are causing blowing game folder and creating of undeletable collections in game.
For now I haven't problems with my store content - I don't own only some SP rewards, older preorders, DrPepper stuff and Origin sets. I haven't in my game also undeletable collections - not disabling internet and game has access to internet too.
Now I should make deeper research for patterns then - still unhappy what I have and I'm unable to create it myself. ;)