Please in the future, try to use the magnifying glass thing on Brave Community to search for topics before you create one. Many people have asked about this and there are official announcements made. It gets tiring answering the same question repeatedly only because someone doesn’t want to take the time to search. And as people create many topics like this, it gets harder for people to search through topics for answers.
The official post is NOTICE: New region restrictions on verifying Brave Rewards with Gemini
The answer is Romania is currently not accepting Brave to partner with Gemini. Only the countries listed in the above link is able to connect with Gemini.