Please check the following:
ON SHOPIFY
Make sure that the CrazyRocket Script is enabled from the Theme Editor > App Embeds menu
PLEASE NOTEYou might need to refresh the page a couple of times to let Shopify load the new script.
THEN:
1) Make sure the campaign is enabled
2) Ensure there are no restrictive PAGE, REFERRER and COUNTRY filters
3) If you embedded the campaign on a landing page, ensure the code has been pasted inside the HTML view
4) Ensure there are no javascript errors on the page (see next section):
Your theme might contain javascript errors that stop the Shopify's ayncLoader before our main script gets loaded.
As the script can't be loaded, we can't render the user interface.
These errors might be caused by Apps that left broken parts of code once uninstalled.
Check your browser's console log to see if this line of code is failing:
if (lightJsExclude.indexOf(urls[i]) === -1)
in such case, replace:
if (lightJsExclude.indexOf(urls[i]) === -1)
s.type = 'lightJs';
else
s.type = 'text/javascript';
with
s.type = 'text/javascript';
According to this post on Shopify:
https://community.shopify.com/c/technical-q-a/javascript-error-on-script-load-lightjsexclude/m-p/1650255
The app AVADA SEO might have caused the issue.