Bmekim informed me that there was a bug with my script, that being.. if you tried to /pm a person named Ben when there was another player in the server named Bendarr, it wouldn't let you pm either of them because the name-piece was too common.
I fixed it by adding in a check for the exact playername when /pming a name. So far I haven't noticed any bugs or anything but tell me if I missed something! Thank you! Reuploaded all attachments with script version 1.1