PERL : not well-formed (invalid token) at line on CentOS 6.6

I have one cgi script in which I am getting this errors

[Thu Feb 05 12:33:16 2015] [error] [client ::1] 
[Thu Feb 05 12:33:16 2015] [error] [client ::1] not well-formed (invalid token) at line 51, column 37, byte 1710 at /usr/local/lib64/perl5/XML/Parser.pm line 187.
[Thu Feb 05 12:33:16 2015] [error] [client ::1] 
[Thu Feb 05 12:33:16 2015] [error] [client ::1] not well-formed (invalid token) at line 158, column 45, byte 7222 at /usr/local/lib64/perl5/XML/Parser.pm line 187.

Here is my complete script:

http://ift.tt/1Kgt4tj

The interesting thing is , I am only having issue with CentOS 6.6. With other systems it works fine. Anyone can tell me what could be the issue ?

Any advice and idea will be appreciable.