Deepl pre translate error in Trados 2019

Hello,

I have the following problem:

When I clic "Pre translate file", even after selecting "When no match found use automatic translation," the segments remain empty and I don't see Deepl's translation proposal unless I select "apply translation" segment by segment.

Also, there's the error "Request timeout" related to using Deepl, why?

Can anyone help me, please? 
Thank you in advance and have a nice evening.

Daniela

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