Hello,
The issue is with the Conflict between BASE URL and the Tabs. They are not compatible with each other and you will need to use the following code for the Tabs instead:
- [Why Us?](http://www.idesa.com.tr/CanvasTemplate/index#construction-tab-1)
- [Work Ethic](http://www.idesa.com.tr/CanvasTemplate/index#construction-tab-2)
- [Team](http://www.idesa.com.tr/CanvasTemplate/index#construction-tab-3)
- [Locations](http://www.idesa.com.tr/CanvasTemplate/index#construction-tab-4)
Make sure that the URL of the Tab always matches the URL of the Page where the Tab is located.
This will definitely work fine. Hope this Helps!
Let us know if we can help you with anything else or if you find any further issues.