Error while using my search bar: I18n Error: Missing interpolation value "termen" for

[Miknenoek]

Can someone please help me how I can fix this error? It is showing while using the search bar

This is the error: I18n Error: Missing interpolation value "termen" for

Thanks in advance! 

[Miknenoek]

Hi, thank you for you're reply, unfortunately I am not that technical and don't know exactly what you mean? Do you think i can solve the problem if I don't have Developer skills?