Sometimes, you will see this error, caused by these reasons:

• Please check the image extensions of your image, Mini World only accepts .png extensions
• Image resolution: the maxium size of your images must be under 800×800 pixels (recommend using 512×512 pixels)
• Image capacity: your image capacity must be < 2 megabytes. When your image great than 2 megabytes, the system will refuse your images
• The image contain some violent or political contents will not be approved in any form

After checking, you can upload and wait for approval.

If you have any questions about Developer Tools, feel free to join our official discord server Mini World Global DEV discord