I have a angular 9 project. I deployed it to server. On server when I refresh angular app, it shows error :

**Error:**

**start**

Not Found

The requested URL was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

**end**

**we are using below for development**

server : Apache

frontend : angular

backend : nodejs

I did not understand what happened. I tried this solution

[link to solution what I found](https://stackoverflow.com/questions/50907736/refreshing-the-page-results-in-404-error-angular-6/50910433)

but We don't want # in over url. with out #, we want solution.
please suggest proper solution.
thanks for your time.