execvp (3) failed.: No such file or directory
Hello,

I have my homebridge running on a raspberry pi in a docker container. 
It works perfect and i can control everything with Siri.
Only when i tried to update my plugins i get this error. 
It happens with every plugin i want to update via Config UI X.

Versions:
Homebridge: 0.4.50
Config UI X: 4.6.1

Installed plugins:
- Config UI X
- Nefit Easy
- Edomoticz
- Hue
- Weather
- Samsung Tizen

Homebridge is listening on port 51826
Console on port 80
