Theme: Avada – repeated copies of tmp files in file directory

Hi,

I am using the Avada Theme and in the file directory I keep getting avada100.tmp (and then avada101.tmp,avada102.tmp, etc.) being created and being stored in the wp-content file directory. I end up having thousands of them and keep having to delete them. They are all 0KB. Does anyone know what this is and how to stop it?

Thank you