Try uninstalling the base game, downloading the wedding DLC first, opening the wedding DLC, see if it says it is installed, and then repeat the process with the other DLCs. Download the base game last.
Viewing post in Our Life: Beginnings & Always - Step 1 DLC comments
Oh! That was it then. It was having problems because I was trying to install it while the game was still on my phone. I thought I just needed to uninstall the game and that I could save the file for it to download faster later. But apparently this was giving me an error on my phone, I managed to resolve it after completely deleting the game, I did the installation again and downloaded the game back, now it works without any problems 👌
There was no problem with installing the DLC, it was just my mistake. My apologies 😅
Anyway, thanks for the help 💓✨