Hi @nayras. Please add a reply here on this forum topic to tell us which Arduino board you are using.
Please be as specific as possible, as some Arduino boards with similar names have significant differences and the forum helpers can only provide effective assistance if we are aware of which one is being used.
If you aren't sure how to describe which board you are using, you can provide the link to the online product listing you bought the board from and we'll proceed based on the information found there.