Newbie to LiteSpeed needs help with PERL access to %ENV variables

My host moved my sites from an Apache server to LiteSpeed Web Server (LSWS). My PERL scripts can no longer see DATE_LOCAL, DOCUMENT_URI, or a number of other SSI environment variables. With SSI we can see that the variables exist. It is just that PERL cannot read them as part of the %ENV hash. Is there a fix? Sorry if this is covered elsewhere. I could not find it. Many thanks in advance.