What to do if an error (red text) is displayed in the Tag Assistant?

If when you test the conversion tag, a red error text appears, the tag doesn't work.

First of all, be aware that this may simply come from installing the AdBlock plugin in your browser. If you have installed this plugin, disable it and retest the conversion tag. If the text goes green then the problem wasactually AdBlock and your conversion tag is working properly.

If the error doesn't come from AdBlock, it could be a JavaScript error introduced by another module on your shop, which prevents our module tag from working properly.  In this case, please read our "How to detect a JavaScript error?" FAQ to know how to proceed.