install_driver(mysql) failed: Can't locate DBD/mysql.pm in @INC 
(@INC contains: /home/domainname/public_html/cgi-bin/ //perl5/lib/perl5 
//perl5/lib/perl5/x86_64-linux-thread-multi //perl/usr/local/lib64/perl5 
//perl/usr/local/share/perl5 //perl/usr/lib64/perl5/vendor_perl 
//perl/usr/share/perl5/vendor_perl //perl/usr/lib64/perl5 
//perl/usr/share/perl5 /usr/local/lib64/perl5 /usr/local/share/perl5 
/usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at (eval 18) line 3.
Perhaps the DBD::mysql perl module hasn't been fully installed,
or perhaps the capitalisation of 'mysql' isn't right.
Available drivers: DBM, ExampleP, File, Gofer, Mem, Proxy, SQLite, Sponge.
 at /home/domainname/public_html/cgi-bin/events_db_embed.pl line 20.