Software error:

Can't locate Digest/SHA1.pm in @INC (@INC contains: /home1/paulappl/perl5/lib/perl5 /home1/paulappl/perl5/lib/perl5/x86_64-linux-thread-multi /home1/paulappl/perl/usr/local/lib64/perl5 /home1/paulappl/perl/usr/local/share/perl5 /home1/paulappl/perl/usr/lib64/perl5/vendor_perl /home1/paulappl/perl/usr/share/perl5/vendor_perl /home1/paulappl/perl/usr/lib64/perl5 /home1/paulappl/perl/usr/share/perl5 /home1/paulappl/perl. /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 /home1/paulappl/perl5/lib/perl5/Net/MySQL.pm line 683.
BEGIN failed--compilation aborted at /home1/paulappl/perl5/lib/perl5/Net/MySQL.pm line 683.
Compilation failed in require at /home1/paulappl/perl5/lib/perl5/DBD/mysqlPP.pm line 88.
BEGIN failed--compilation aborted at /home1/paulappl/perl5/lib/perl5/DBD/mysqlPP.pm line 88.
Compilation failed in require at /home1/paulappl/public_html/myspider/cgi-bin/mySpider_search_myspider_online.pl line 34.
BEGIN failed--compilation aborted at /home1/paulappl/public_html/myspider/cgi-bin/mySpider_search_myspider_online.pl line 34.

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