Madden Mobile How do I get my collectibles back from a set in progress

I just got done with my first season on madden mobile for IOS and saw the sets option with the playoff master, super bowl visiter, and Super Bowl champion options, I only had one of each so I placed them in the set thinking it would change 0/7 to 1/7 so I could keep storing the items until I unlock the set, but out of nowhere the sets all disappeared and so did the items, I can't find the sets to get the collectibles back and I don't know how to get the collectibles back from the set? Someone help, I don't want my first season progress to be completely lost