Hello,

I get an error message ‘error Class “JVersion” not found’ whenever I use the Helix Ultimate template.

Everything works fine when the ‘Behaviour - Backward Compatibility’ plugin is activated. I've taken care to check that all the components, modules and plugins are compatible with Joomla 5 and without J5 support (b/c plugin).

If I activate the Cassiopeiatemplate , the page is displayed correctly, but when I switch back to shaper_helixultimate the error message returns.

Can you help me please?