Unable to buy daily bundles - Store not initialized

[Cruxin]

I am interested in purchasing some of the daily limited-offer bundles, but have found myself unable to on mobile. When presented with the offer screen on opening the app, an error message is returned - along the lines of "Store not initialized - please wait or restart". Closing this error message and selecting the purchase button again does nothing, not even create the error a second time, and it is impossible to buy the bundle. Obviously, restarting the app voids the offer, and in the regular store after closing the offer/restarting the purchase system works correctly. I have also found that waiting until shortly before the offer expires does not seem to help either.

The issue continues with every offer attempted each day, even after restating, reinstalling, logging in and out, etc. I have found complaints about this issue since 2019 at least.

Current app version is 3.2.6 (13807), OS is Android 10.