Template Customizer “breaks” after enabling this plugin

Hi! We have 3 websites with your wonderful plugin and it’s been great, but since in one of them we updated to the latest version 2.2.5 it breaks the template customizer page when we try to access it with the plugin being enabled.

After we disable it everything works fine.

Is there a place where we can find the older versions until it gets fixed in later versions?

Thanks and have a nice day!