Theme downloaded in another language

Hello,

Two weeks ago I downloaded the theme Apprise, and since the I have worked a lot to customise it. Unfortunately, it was downloaded in Spanish, I think because I made it through my hosting, which I contracted in a Spanish company.

How can I download the theme in English? or change it into the English version? it is really important, as some features (“search” button, calender, info about my posts’ dates, etc.) appear in spanish!! in two languages my blog looks so unprofessional!

Thank you guys in advance for your help.