Apache doesnt permit to configure wordpress

[elvan]

Hello,
I am setting up wordpress to linux with ubuntu. and i am following this guide https://www.linode.com/docs/guides/install-wordpress-ubuntu-18-04/ i followed all steps. But in 'configure wordpress' part it gave the an error like 'Forbidden
You don't have permission to access this resource.

Apache/2.4.29 (Ubuntu) Server at www.homelistt.com Port 443'

do you have any idea what should i do? my permissions are like https://bpa.st/GK3A

Thank you.