[FSTrigger] Triggered by a change to a folder (log)
Running as SYSTEM
[EnvInject] - Loading node environment variables.
[EnvInject] - Preparing an environment for the build.
[EnvInject] - Keeping Jenkins system variables.
[EnvInject] - Keeping Jenkins build variables.
[EnvInject] - Injecting as environment variables the properties content 
PARAM_ENV=environment

[EnvInject] - Variables injected successfully.
[EnvInject] - Injecting contributions.
Building in workspace /var/lib/jenkins/workspace/debug
Evaluated macro: 'environment'
New run name is 'environment'
[debug] $ /bin/sh -xe /tmp/jenkins8348416087300568697.sh
+ '[' '!' -n '' ']'
+ echo '[ERROR] PARAM_STRING not set..'
[ERROR] PARAM_STRING not set..
+ exit 1
Build step 'Execute shell' marked build as failure
Finished: FAILURE