Hi I created a new class just for shits and gigs but it's having a error.

ERROR: No loader found for recourse: res://assets/images/iconsclasses/Saint.png.   At: core/io/resource_loader.cpp:286

Not sure what I'm doing wrong ( I'm new to doing this please go easy on me on being a idiot ) I downloaded an image from the google images and put it in the iconsclasses folder and renamed it to Saint.png and loaded the game saying there was a error ( the error is above ) I tried creating it again and renaming it Saint.png.import but still didin't work so I thought maybe I should create a file and put it in .import since I saw files with png- I thought maybe it also want's the original file name so I renamed it to Saint.png-BKBz2GXztxcBbp-y6oYlRIm3hWaWR6kAqYxiAlBo3M.stex and it still didn't ( yes I know wtf was I thinking ) so now i'm here looking for answers.

This is the code I copied from Fighter class and edited to my new class: https://pastebin.com/7KsUmmsU

Don't mind the stat changes xD ( yes it's a bit overboard  ) also is there a way to make it as a starting class?

Sorry for my grammar ( This is what happens when you don't listen in class especially in English class )