i cloned my opencart project from githun to ubuntu , how to run that opencart project in ubuntu.

Hi everyone, i am trying to run my opencart project which is cloned from github , i used window os to change the opencart code, now i was cloned that project in ubuntu , i connect the database and install apache2, php,and mysql in ubuntu. But when i am trying to run it in browser but i got fill not found error. can anyone give solution for this? Because it will help me to customize the codes in opencart. Tell me from the scratch.

Are you managing your own Ubuntu?
What is the release of it. Its appear that the error is from the server configuration check your logs

Have you installed the system in your local environment? It looks like a permission issue.

You can try providing permission to your store folder. (change the owner of the file or directory specified by the File or Directory parameter to the user specified by the Owner parameter)
Refer to the below command (if you are using pUTTY or some command line interface): For example, chown -R www-data:www-data foldername

Please review the above information and let us know if it resolves the problem.