Language problem

Hello. I was changing a little words in my spanish language in the file: languages/es-ES.com_osproperty
And suddenly the text in website change to english with no explanation.

Can you help me?

Thank you very much.

Hi,
Please do not change in language file directly, because if you make wrong something, the language file will be error and Joomla will use the English (default) language file as replace.
I advise you to copy the original Spanish language file and use Translation tool at Back-end of component to translate the text.
Thanks
Dam

Ok perfect, thank you very much