Yes George, if you want to continue trading with Russia you've got yourself some real problems.
You can't use Euros or Dollars, nor any currency using the international SWIFT money transfer system.
If you want to buy anything from Russia, you're limited to using a limited number of paper currencies, called a "Sack of BRIC" via courier, or you have to barter.
If you sell to Russia you can now accept their new "Sack of Shit" standard which is big hefty bag of paper Rubles losing value at more than 50% annually.
Sacks-of-Shit also have to be hand-carried to a limited number of nations like China or India. Payment in "Sack of BRIC" is sadly limited to priority military purchases.
I completely don't understand the appeal of being a Putin-Trump sympathizer. - It's just so sad.
We've run out of other people's Social Security taxes needed to subsidize our low income tax rates.