Hummingbird killed realtive path

Hi Supportteam,

this is more a bugreport than a support question:
The css referenced Logo SVG-File (Backgroundimage) was given a wrong path:

http://2016.gillrath.de/wp-content/uploads/wp-hummingbird-cache/5/72/51311572/htdocs/wp-content/themes/gillrath_v8.2/gillrath/_grfx/logo/gillrath-logo-vektor-resp.svg

All the best
florian