I'm sorry if this is not posted in the right place but....

After changing the name of an npc, with frosty's cache editor, the npc first click description now reads
"Talk to Herblore Shop (level: -1)". I am trying to remove the level: -1 part but to no avail so far.
Any help would be much appreciated or any hints in the right direction as google is coming up short on this one.

Thank you!