Hello
please check if you have activated the pro theme or not
free doctor clinic theme and the pro theme are two different entities.
go to dashboard >> appearance >> themes >> check if the pro theme is active or not, if not then please click on the activate button
Thank you

Hello
Go to dashboard>> slider >> add new >> set title and other details >> set featured image from the right side panel >> click on publish to save changes

Repeat this procedure to add more slider images
If the slider doesn’t appear please disable all your plugins and check if it works.
If it still doesn’t appear then please check if you have setup the static front page.

If none of them works then please contact us on [email protected] with your wordpress username and password along with your website link and we will see what is causing the problem.
Thank you

Hello
please use this link instead https://luzukdemo.com/demo/solar-energy/documentation
Thank you

you could also install a plugin named as fontawesome here is a link https://wordpress.org/plugins/font-awesome/
for quick solution just install it and activate it and it will resolve the issue, if not then let us know
Thank you

Hello
could you please send us your website link along with your wordpress username and password on [email protected] ?
also if you could send us a screenshot of the issue then it will clear things more for us to understand your issue.
Thank you