Hi @KovAlex and welcome to the community.
Can you please share more about the issue you have as it is unclear for now what are you trying to save, where and the most relevant how.
A bit of a code or tutorial where you get the info would be great.
As a suggestion, you can try to check some videos on Youtube related to saving the game and stats. Like this one: Save And Load Player Stats - Unreal Engine Tutorial - YouTube