I am trying to create a tile package of part of a county in Florida. I have created a couple of different tpk's of other areas using the same method, however this time I am getting this error message:

All of my data is in Web Mercator. To create this tpk I am going to File > Share As > Tile Package. My zoom level is set to 20, tile format PNG. I am trying to create this tpk for Survery123. Any suggestions on what settings to check? Thanks in advance!