Can you(or at least someone) please help me?
Your version of DragonAPI and thaumcraft are not playing nice with each other. The first steps in debugging this is to try with just DragonAPI and thaumcraft and to tell us the versions of the mods that you are using.
Edit: Getting that many mods to work together with out stepping on each other's toes is impossible. Try picking a smaller subset that you want to play right now and leave the rest for later.