Having problems with my first mod

Thank you for the response.

I did the remap as you suggested, and created a child version of the amarberry.

This still did not work. Is there a way to check if a mod is running in singleplayer?

Do you have to host an entirely new TheIsland for the mods to work? Or will they just work when added.

EDIT: I tried running 2 mods, with mine taking priority. It seems my mod just isnt being loaded. what should I do?
EDIT2: IT WORKS AHHHHHH