Hummingbird Cache problem Google Page Speed

Hello,

I have a question. We have multiple sites running with Hummingbird. We are trying to get Google Page Speed as close to 100 as possible. On every site we get this problem: https://booomdigital.nl/wp-content/uploads/wp-hummingbird-cache/a026bb6e635324c6a4459559a6b72b6f.js

We get it both in CSS and JS. Can you please tell us how to dix it and how it works. Please respond to this e-mailadres: daniel@daizy.media

Thanks in advance