Getting error in google chrome plugin

[Somebi]

Stucking at the last step (Checking post onload components)

Plugin console printed error: yslow.html#1:1 Error in event handler for (unknown): TypeError: Cannot read property 'length' of undefined at buildComponentSet (chrome-extension://ninejjcohidippngpapiilnmkgllmakh/controller.js:95:32)

Part of the code responsible:

[Somebi]

Hope this helps ;)

[hitzi]

Confirmed with Chrome Version 61.0.3163.79 (Offizieller Build) (64-Bit) and YSlow 3.1.2