We have encountered a bizarre error in which a node at the level in the tree below fails with the error shown below. We have confirmed the same error happens in this level of the tree on other sites. We have a website called "Transplant Surgery".  "Transplant Program" works fine as the name. "Tranplant" does not throw an error when it is a nodename at a lower level of the tree.

 I am the PM, not the programmer. Is it possible that there is an XSLT program or some programming construct that is causing this error to be thown?