I deactivated all logos, complete wipe, and it still gives me the 105 error so I'm fairly certain it's on EA's end on this one.
Edit: Okay, so here's how i fixed it. Speaking with gemini we found some solutions.
Any submitted png needs to be 1024x1024 with a cleared background, this can be done in paint, and the actual image can be whatever size smaller, the 1024 helps the system accept the asset is not "blurry".
So, once you repair any pngs you're using, upload them and trash the old ones.
Also, I removed my alt uniforms. I will be trying to reintroduce them, but I'd rather have all the rest of that work saved and submitted first as making an accurate 85 man x-men roster was a pain to begin with.
Hope that information helps, good luck out there.