Adjust date wording

Hello, we are using the Inspiro Light theme. In addition to the author and category, the date of publication is also displayed in the header. However, the wording is incorrect for the German language. It says “an” and then the date follows. It should read “am” or even better “veröffentlicht am”. How and where can this be changed?

Thank you!

SOLVED: With the plugin Loco Translate I was able to customise the translation in the theme.