Vos Ours- update

So, the odd note found its way back into my mailbox at work yesterday. The note had been folded, unfolded and refolded a few times since I last saw it, so I can only assume the other teacher with a name similar to mine pondered the note for a few days before pushing it back onto me. I thought I would write it verbatim for anyone with an interest in French, grammar, or weird notes.

"Mlle MAAS [sic],

En raison des Oraux de Section Espagnole, vos ours des 11 et 12 Nous auront lieu en salle ECRIVAINS.

Merci de votre comprehension.

Le CDI."

So there it is in all its grammatically incorrect, utterly confusing glory.