Event Websites are empty, some bugs because of update

when i create one in the “events” bar, i get a blank page on later on the website.
“page not found”

Also, due to an update, our WPBakery Page Builder license has expired.
I can no longer create a user or change a password.

Hey,

i tried this like in this video. Doesnt work..

There some bugs:

1. If I create an event on “Events” the page wont be found. Add new event -> blabla -> online. Result page not found.
2. I tried to create a new user for the support. I can´t set a password for a new user and then I can’t create it. Also I it is not possible to change ist. The field for the password letters doesn’t exist.
3. I don’t know why, but since (maybe an update) the editor isn’t work with the hole wb backery builder. Before I could go at one page -> edit. And then it was possible to choose different editors. Now I can see choose between “visual” and text.” WP Bakery Builder doesn’t work anymore.