Delete the lines in .conkyrc that are throwing the messages. They are
Code:
sdc1 NTFS (Data): ${fs_free_perc /media/data}% ${color FFFF33} ${fs_bar 6 /media/data}$color
and
Code:
${color 339900}${execi 30 tail -n3 /var/log/messages | fold -w50}$color
As with most things, it's always better to start with the default configuration file, read the documents, understand the documents, and customize yourself rather than relying on someone else's configuration file.