Fail Visualizer information OCS

Hello,

I have OCS 2.3.6 installed and when I click to see a paper in the next window, the translation fails.

I already checked the language pack es_ES and everything is declared.

##manager.scheduler.building##: Edificio Ciencias Humanas
##manager.scheduler.room##: Auditorio Ágora

image

How can I correct this error?

Thanks