Once you finished running RVsitebuilder installation in SSH, and access to WHM -> RVglobalsoft Manager -> RVsitebuilder to Setup, but you got the following error.

The RVsiteBuilder require backup native database before convert database to UTF-8, but it cannot process in browser mode. Please run the installer on SSH as root: Run "perl /usr/local/cpanel/whostmgr/docroot/cgi/rvsitebuilderinstaller/autoinstaller.cgi".

Please run the following command to fix the error:

perl /usr/local/cpanel/whostmgr/docroot/cgi/rvsitebuilderinstaller/autoinstaller.cgi

Then the server will be asked if it needs to backup UTF.

Press “Yes”.

After that, some servers may face the following error.

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Your server has MySQL Strict Mode On, which is causing RVsitebuilder installation unsuccessful.

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You can fix it by this guide MySQL strict mode function turned “On”.