not uploading / uploaded has texture isuses



so 3 days ago I uploaded a model, not 100%humanoid (yes it worked fine) the animation worked and basically everything else until I clicked Z rendered, the texture was way off also in layout it seemed unfixable after hours of trying and so I tried to upload the edited file of the model and it says 'sorry unable to map you exsisting skeleton" while the model uploaded before? and even with "chat support" they didnt have a clue and just kept sending links ending nowhere.
ive added images as proof that it can actually be uploaded to maximo adn what the texture is supposed to look like compared to the mixamo version(the one with all the colours in the main is the wrong texture of mixamo)
so if anyone knows how i can fix the texture issue or re-upload the edited mode, please help me!
