GOOGLE TRANSLATE API not working in any of the two plugins of Trados 2017

Dear all,

 

I have an error message when trying to plug Google Translate API to Trados 2017.

 

I only can find this support page: https://docs.sdl.com/LiveContent/content/en-US/SDL%20Trados%20Studio%20Help-v4/GUID-403903F1-3DC7-4A15-ACE1-9063FA254DAC

 

And the error message is "The API Key you have entered cannot be validated with Google".

 

Thank you in advance for any ideas you may have :)

 

Best,

Clara