Warning: no boundary found

I have been trying to run a simple groundwater flow model, I defined all conditions and properties but it always gives this error for all projects I run. Even projects that ran thorougly in other colleagues computers.

I have attached my projects in the link below.

Kindly advice.

https://drive.google.com/drive/folders/1c51yP0MBOGQqIa6-G1cE1pHLUVtLdeiG?usp=sharing