Honestly, i suggest you read into how Ruby works, and play around creating you own code and how things work. Im by no means an expert, everything I create is self-taught after months of trial and error. But - and i mean no offense - you dont seem to understand how even the basic stuff works. Im happy to help you, but youre going to run into a lot of issues with script installations if youre having these types of basic issues.
Remember, Syntax errors mean that something in the script is legitimately entered wrong. A missing symbol, or a missing "end", etc. So 99% of the time, if you got a Syntax error, its because you either wrote something in the incorrect format, or installed something in the wrong place. Which is the case here.
You placed the code for displaying Dynamax data IN the shiny code, not after. So now, the game thinks youre trying to display dynamax stuff only if the Pokemon is shiny, which is probably causing some kind of clash. Please read the directions carefully when installing. Try moving the code after the "end" that ends the code for shinyness two lines down. See if that helps.
And more importantly, delete the random ": symbols after @pokemon.shiny?
Again, be very careful about how and where you paste things. That was probably something you pasted by accident when moving code around.
