Incorrect and exaggerated prices are displayed only in the cart and checkout

Hello, good afternoon, recently I am using your complement, and we are encountering a problem that is difficult to solve. We have a store where all are virtual products mostly with variations. The problem is that as soon as a product is added to the cart, the price changes in the cart and an exaggerated price is displayed when changing between one currency and another.
We have disabled other plugins to rule out incompatibilities but the problem still occurs mostly when adding a variation, apparently not for simple products. Is the free version of the plugin compatible with variations?
Or what could be the problem?

Thank you so much

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