Help me solve a simple cipher string - открыт для заявок

Hello, Without more details about the cipher is difficult to make a proposal. However I like to solve these kind of things. Can you give me some details about the cipher? Thank you for your time! Best wishes, Ionut

Hello! My name is Oscar and I would like to help you with this task, or at least take a look and check if I can help in some way. I can handle projects in C# and Python mainly, but I can help you in other fields too. Check my profile to see that I am a professional and experienced freelancer. Don't hesitate to contact me to let me kow that you want to work with me. We will be able to build a good business relationship for the future. Thanks a lot

Hello, this task is difficult If you want to decrypt the encrypted string but you don't know the secret key and formula. Cheers,