Another bug for you.

Go into the STORE, then go MORE to REWARDS, then go into the TAB tab (bug #1, it's back to being called "TAB").

Click on the Clan God Soul Fragment and you'll see the button for Ironite is Green.

Go back till you get to the Store (once). Click on New, then click on the expired Space Time Amulet. As it's expired, you can't buy it. Go back to the TAB tab above and you will find the Clan God Soul Fragment now can't be purchased (bug #2).

Exiting the Store doesn't solve the problem. You need to exit the game and restart it.

Note: This happens for more than just that item in the store. A bunch of items get weird things where either you can't buy them, or the button looks like you can press it (Green) but ironite symbol is black rather than the standard blue/purple (haven't tried buying those).