Does Traditional Astrology have methods to remedy troubled charts eg amulets,chants?

Just listened to Volume 2 of Lee Lehmans Foundations of Astrology series on the Medieval Period and she does mention the use of amulets and prayers within the context of Medical Astrology (and indeed the use of gemstones). She gives Cornelius Agrippa a good mention as showing skill in Astrology.

So the answer to your question appears to be 'Yes' but I'm not sure about the websites' products as being 'authentic' reproductions. You might need an expert on Agrippa to give you more info there.