My dear friend, I translated your post and understood everything. Giving a downvote from a small profile doesn't really cause any harm, and such mistakes can easily happen in the beginning. Even I accidentally downvoted someone when I was new! When he asked me why I did that, I explained that it was done by mistake.

Understanding the situation, he actually gifted me 5 HIVE tokens! Mistakes like this are completely normal when starting out, so please don't stress about it at all. We learn by making mistakes, so just view it as a learning experience. Stay well, my dear friend—there's no need to worry about this, things like this happen in the beginning!