Corrupt gallery items

I recently downloaded TS4 and from the get go I have struggled with my gallery. I know it isn't a mods or CC issue as from the initial download the problem has occurred. When I go to the gallery to see the different builds people have created, it takes forever to load and then nothing happens. A big red X shows up where the images should be and when I try to access them, it states the files are corrupted and asks if I want to delete it. This happens for ALL the files in the gallery.

The 'My Library' loads fine, but as I'm new to the game, I have no personal uploads apart from the ones that come loaded onto the game. I have tried the following tactics to try and rectify but NOTHING seems to be working:

• Removing TS4 files, putting it onto my desktop and restarting the game (nothing changes). I have also deleted the Localthumbcache.package, and have tried with and without mods and cc.
• Excluded all of TS4 files from my firewall (I'm with Norton 365) and excluded it from scans too.
• I have repaired the game in the EA app untold amounts of times, I only have the base game so although a quick process there seems to be a lot of repairs going on.

I am working on a MacBook, I have plenty of memory, no lagging during actual gameplay, and honestly everything has been fine other than the gallery. I understand it isn't a necessity BUT I really wanna have a look and download some of the amazing content people have created! 

Sorry this is a long one but if this can be fixed I will be forever grateful. (attached files show screenshots of what I'm having trouble with )