There can be only one CallPage code on the website. If you want to display different widgets within one domain you need to merge widgets.
Create widgets you want to have on your site.
After you create all widgets go to Widgets and choose Edit widget settings. Merging widgets is always done in the settings of the main/default widget.
Next, go to General and Merge widgets.
Click on Add rule button.
Decide which widget will display.
Then you create rules.
Select the address of the subpage where you want the selected version of the widget to be displayed. Save.
Then, click Generate code, copy the code, and paste it onto your website.