In almost every website where I use the Helix Framework but also in Templaty from you, I cannot add a currency item. After trying to create, I get to an error message. Please help in solving this problem + I would need to know then how to fix it in any site where this problem arises.
Also, an ongoing problem with DB when updating or installing modules.
Joomla\CMS\Filesystem\Folder::create: Could not create folder.Path: /var/www4
Before you update Joomla, ensure that the installed extensions are available for the new Joomla version.
You are strongly advised to make a backup of your site's files and database before you start updating.