This error keeps appearing everytime I upload a custom skin

[Slendytubbiesfan440]

Does anyone know why I keep getting this error every time I try to upload a custom skin? It even happens with images from Google; I’m not sure if it’s an issue with the game or something on my end. 

(Also, when this happened to me, I joined the game and the custom skin i already had was suddenly gone.)

for me I use like soundcloud for some skins i made some skins and post them as the PFP on the song you should try it and if that dose not work try to use zeoworks by vreating a thread and uploading the skin images