tModLoader Expected resource not found tmodloader error

[golfph]

I'm trying to make a mod with a weapon 'sussy bow' but tmodloader has this error message. here are the message and code
any help?

 

[Michaelsoftman]

Is the image a valid .png? Try re-saving it as one.

 

[golfph]

Is the image a valid .png? Try re-saving it as one.

that worked, thanks!