"The selection did not contain any resources that can run on a server" ERROR

So, I have imported this team project from Github and set up a Tomcat. I start Tomcat through the eclipse and try to run our main file "login.jsp" on a server, as shown on this picture.

But every time I try to run it, I receive this error - "The selection did not contain any resources that can run on a server". screenshot of an error. I have tried dozens of solution from going to the Project Facets and swapping for the Dynamic Web to, basically, changing something inside the files but nothing seems to work.