After several issues woth Pagebulder 4, i contactet support by chat.
After a long chat, the told me to install Pagebuilder 3 over pagebuilder 4, so I got back pagebuilder 3. Even when I told rolback is not possible (follow a facebook post). Don't bother i is solves they told me.
Installed latest vesion 3 on it. After that the total site was broken. So roleback is not working.
She told me to make a new post. So here it is.
Site is now om slj4.trainingjoomla.nl