Step 1:
Copy all folders to your source main root.
Step 2:
Install Extensions/Modules/ Coupon Bar
Step 3:
If you get Permission denied when you click on ticket link of admin panel.
You need to change permission >>
Go to admin panel >> System Menu >>> Users >> User Groups >> Click Top Administrator (Edit link) >> in access permission click on select all and same with modify permission select all and then save it.
Step 4:
For Opencart 2 version : go to layout in admin panel click on extension -> module-> layout link edit template where you integrate the page
If Permission Denied >> Follow Step 5:
If you get Permission denied when you click on ticket link of admin panel.
You need to change permission >>
Go to admin panel >> System Menu >>> Users >> User Groups >> Click Top Administrator (Edit link) >> in access permission click on select all and same with modify permission select all and then save it.