Hi @Nomsy , I’m afraid the attachments in your post did not work for some reason. If the files are large it is often more reliable to share a link to a google drive / dropbox, etc.
I don’t know if this is related to the error, but I don’t think you will get meaningful results this way. The AOI is supposed to delineate the region of the Landmass to include in the analysis. To get started, you could use a simple public dataset such as the “Land” layer provided by Natural Earth » 1:10m Physical Vectors - Free vector and raster map data at 1:10m, 1:50m, and 1:110m scales