Hello and a nice day.

I bought today the Riley Joomla 4 template and tried to install the Demo Installer on a instance (dev) of my webserver. Everything went through fine but when I want to go to the frontend after the finished installation I get:

0
CLASS "JOOMLA\PLUGIN\BEHAVIOUR\TAGGABLE\EXTENSION\TAGGABLE" NOT FOUND
An error has occurred while processing your request.

You may not be able to visit this page because of:

an out-of-date bookmark/favourite
a mistyped address
a search engine that has an out-of-date listing for this site
you have no access to this page
0 Class "Joomla\Plugin\Behaviour\Taggable\Extension\Taggable" not found

When I want to go to the backend I get:

An error has occurred.
0 Class "Joomla\Plugin\Behaviour\Taggable\Extension\Taggable" not found

I did the installation 3 times but always with the same outcome!

By the way, I also didn't get the possibility to choose the template content while the installation described in your tutorial.

"The final step of the Joomla installation is probably the most relevant when using the 'Demo Installer' as this
where you import the sample data. In the installer we replaced Default English (GB) Sample Data with ou
template demo content so it is important to select this option before hitting 'Install'."

Maybe someone can help me and let me know what I'm doing wrong!

Thanks in andvance
Markus