Dear jor1196,
I had this issue too, and I had Spanish settings too. The solution to re-enable Snap Store - Ubuntu Software is very weird:
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go to your Ubuntu language settings and choose English. It will ask you to restart. Do so. Be careful, not to modify the names of your folders when you log in again (I suggest to keep the old ones).
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once you have logged in, launch a terminal again with the command
snap-storeto run Ubuntu Software.
At the time being, I have not solved yet how to make it work with the Spanish interface yet, so I am running Ubuntu with the English one.
Best Wishes,
Roger