Dreamhost is upgrading to PHP 7 and this is causing a malfunctioning on our website.
They wrote that the problem is
"your website seanrileystudio.com is not fully compatible with PHP 7.2 version
and it recently received our initial PHP upgrade on January 22nd.
The error being thrown on your website's backend is regarding a
deprecated function "mysql_connect()" used to connect your website
to its database. This was the error message thrown when testing your
PHP Fatal error: Uncaught Error: Call to undefined function
They suggest to upgrade Indexhibit, but we already have a 2 version.
What are we supposed to do?