Good evening Rob and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
Normally, you should be able to display everything in Spanish, we just need to figure out why that’s not the case for you.
As a first troubleshooting step, could you please provide us with your complete system information from that site in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Secondly, could you tell me which version of Spanish you are using (from Spain? Chile ? Etc..)
Best regards,
Geoff B.