Internal Server Error while a create a new site on existence bench


I’ve already a running site on my server and I want to add a new site on the same bench folder.
by using the following commands
bench new-site site1.local
bench set-nginx-port site1.local 85 // 85 is the local port

However when I open the browser and enter localhost:85 , an Internal server error message appears.

Please advice if there is any missing command


Have you a traceback you can post?

Do any logs point to the problem?

frappe@erpnext:~/frappe-bench$ ls -alt logs