My map doesn't render!

My map named rtyburtbu is not rendering. No mods. All files are good.

My map named rtyburtbu is not rendering. No mods. All files are good.

Your world seems to contain modded content within the data, DIM1, and DIM-1 directories. In order for your map to render successfully, you will need to remove the following files and directories. Make sure to backup your world before making these changes.

• chocolateQuest within data (Entire Directory)
  
• DIM1 (Entire Directory) - Contains unsupported files for the Nether region. Will delete the Nether.
  
• DIM-1 (Entire Directory) - Contains unsupported files for the End region. Will delete the End.
  

Additionally, make sure you select the correct version of Minecraft when uploading your world.