What issue? VAT is paid by the user (collected and remitted by you) and differs by country (used to be hassle, easy today), but the taxes you pay in your country for your company is the same regardless of where the users who paid you are based (assuming there isn't something country-specific about that), it's more about where your company is tax-resident.

Unless there are permanent-establishment issues, withholding taxes, or other country-specific digital tax regimes, where your users are based shouldn't affect how/what taxes you pay.

Otherwise, if you don't have any employees or presence in other EU countries and only doing digital services B2C, you shouldn't have to do anything specific about the taxes you pay.