Hello there
Yesterday I published the monk 3.0 (can´t get tired of it) and when I tried to update it with a new version that included a crhono for thirst. I uploaded (unintentionally) the game 3 times. I don´t know if this has something to do with my problem
Question is that when I tried to play in the BBS it showed me this message

I don´t understand if it is a problem of the code or if is another kind of problem

Please someone help me!

I have played it on pico8 (not in splore) and there wasn´t any problem, so I guess it is not a problem of the code
So, what kind of problem is it?

Your PNG files are corrupted, for versions 1, 2, and 3. Did you use third-party software to modify them, or to transfer them? It is important not to modify these files because the cart information is hidden in the pixel values.

I mailed them to myself to post them on the BBS from this very PC.
Before when I emailed them they were mailed in an slightly different format than before

A lot of e-mail programs will do things like resize or resave the images if you include them in your e-mail. Try directly attaching them to the e-mail (in Gmail, click the little paperclip icon), instead of including them in the content of your e-mail itself.

What you said just clicked a memory ofadding them directly