Hi, there is an error with your buildozer installation.
Step 1 : remove .buildozer folder from your project directory.
Step 2 : make sure you have java installed [java -version cmd to check it] if not install it by this command : - apt-get install default-jdk
Step 3 : run buildozer again. in the middle it will ask you to accept liscence. kindly accept it. don't ignore it.
Everything will be fine, if not post your buildozer.spec.