or download this
Can't locate CGI/Ajax.pm in @INC (you may need to install the CGI::Aja
+x module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/p
+erl/5.30.0 /usr/local/share/perl/5.30.0 /usr/lib/x86_64-linux-gnu/per
+l5/5.30 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.30 /usr/sha
+re/perl/5.30 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-
+base) at log.pl line 31.