Labor English Zone: Spelling mistake!

We found this at a hotel in Moaña. Where is the mistake?
Leave your answers at the "Comentarios" section, right at the end of this post.

preceptor
Definition:	Teacher at a university or college (especially at Cambridge or Oxford).
Synonyms:	don

	Online Reference Dictionary, Encyclopedia & more
Word:
Look in:	Dictionary & thesaurus Medical Dictionary Legal Dictionary Financial Dictionary Acronyms Idioms Encyclopedia Wikipedia Periodicals Literature Other languages: Spanish Dictionary German Dictionary French Dictionary Italian Dictionary Chinese Dictionary Portuguese Dictionary Dutch Dictionary Norwegian Dictionary Greek Dictionary Russian Dictionary
by:

Labor English Zone