@AntonioSousa is correct, unfortunately this means that you'll have to start with associate again, as your initial associate certification is probably older than the professional. Also, if you retake professional (regadless of if its a renewal or if you start from associate again) you will have to do both the written and practical again. So unfortunately this would mean 3 exams before you can be on your way to master 😞
My humble opinion: there should be a grace period of, say, 6 to 12 months after Professional cert expiry, where you can retake the Professional exams without starting from Associate. If you have successfully passed the Professional cert within the last 3 years, IMO the Associate exam is trivial; basically a formality.
In my way of thinking is easier to get all five AWS certs instead get Dynatrace Master certified.
Main reason is that AWS Certs requires no human interaction. It all depends only on you, your knowledge, your skills, your experience, your passion.
It is impossible to win the game - where there are no clear rules for victory and defeat.
It is better to set real goals and achieve them.