@yadavpramod888
Before we could really track down the issue, we’d need to know more about your configuration.
How did you setup your Droplet? Did you use a one-click image from DigitalOcean or did you do all of the configuration yourself (i.e. using a package manager or compiling from source)?
What error(s) are you receiving? You should see output from the error either on the page or in your error_log
file.
How many and what plugins are you using? Using too many plugins can slow your website down by increasing per-page processing of code and database reads/writes. Also, outdated plugins can also cause issues, so making sure all plugins are 100% up to date will at least cover this concern.
Let me know and I’ll see what I can do to help!