I'm using magento 2 and I'm trying to add the Google Tag Manager code (noscript and script parts) to my magento 2 installation , what's the best way to do it ?
I found this module to do it https://github.com/magepal/magento2-googletagmanager
But once I enable it and add the code , when I go to my website I get a 404 error
The page you requested was not found, and we have a fine guess why
And is the same even if i try to go to the admin panel , the only way to revert this is to disable the module from the database.
Does anyone has any idea why it acts like that ?