Design Adjustments for Printing

We already have a design concept for a 250 ml can drink, but after submitting it to the printing company, we received feedback that requires some adjustments. The design needs to adhere to certain printing limitations specific to 250ml cans, including the use of 6 spot colors, and simplification... The details of the printing company's feedback can be provided upon inquiry. i need a professional who can fix this problem and make the file ready to be printed