It looks like you’re trying to link to a script that might not exist…
"%resource (scripts/wave-animation.js)%"
You need to ensure the script is in your resources area and linked correctly. The path should look more like this, but it’s hard to give you the exact code without seeing your project:
src="scripts/wave-animation.js"
Where did you get the “wave-animation.js” file from?
It worth be worth dropping 1LD an email, I think they plan to support Elements so they should be able to point you in the right dircetion to get this working!