That means your server doesn't have LWP::UserAgent installed.
Your host will need to do it.
perl -MCPAN -e 'install Bundle::LWP'
-OR-
perl -MCPAN -e 'install LWP::UserAgent'
Your host will need to do it.
perl -MCPAN -e 'install Bundle::LWP'
-OR-
perl -MCPAN -e 'install LWP::UserAgent'