RVsitebuilder 7 is the user self-setup that it will validate environment of each control panel account while creating website. If any found lack of min requirement, it will return error on the step Create new site.
Sometimes when you access control panel to edit your website, you would see another button "Repair" next to "Edit". This button will appear once it has something changed or updated on control panel that may or may not affect to your website.
You can ignore this "Repair" button and "Edit" your website as usual. But if you click "Edit" and see error or find some features in content editor doesn't work, you can come back on this stage and click "Repair" to fix the problems.
Don't panic! By clicking "Repair" button will lead you to a Create new site step to reinstall RVsitebuilder on the this domain name again, but it WILL NOT DELETE current content in your website.
But if sometimes the "Repair" doesn't help fixing any, please submit a ticket to us.