Hosting Asp.Net core with Angular, Entity та Identity Frameworks

I have developed my first Asp.Net core project with Angular, Entity та Identity Frameworks and i need to host it. I tried different way in order to do it but all of them is failur.
Locally everything works fine. Also I managed to connect to the database on the server. But when I want to public site, I get errors. If you have experience to host sites with these technologies and can help me, please let me know.