The file violates copyright / you did not ask the original author for permission / list of original authors or sources is missing!

Copyright Checklist

• Make sure that you are actually allowed to use all files that you are using!
• Ask the original authors of all used files if you are allowed to use them!
• You are only allowed to use those files if you received explicit permission!
• ALWAYS list the original authors and sources in the description of your file! Otherwise it will get deleted!

"but tiles not my"

That explains a lot.