This is from the error log;
2018-05-06 09:57:25,447 - ERROR - [MainThread] UM.Logger.logException [81]: Exception: Exception occurred while loading post processing plugin: module 'PostProcessingPlugin.PostProcessingPlugin.VaryTempWithHeightCura3' has no attribute 'VaryTempWithHeightCura3'
2018-05-06 09:57:25,463 - ERROR - [MainThread] UM.Logger.logException [85]: Traceback (most recent call last):
2018-05-06 09:57:25,463 - ERROR - [MainThread] UM.Logger.logException [85]: File "C:\Program Files\Ultimaker Cura 3.3\plugins\PostProcessingPlugin\PostProcessingPlugin.py", line 153, in loadScripts
2018-05-06 09:57:25,463 - ERROR - [MainThread] UM.Logger.logException [85]: loaded_class = getattr(loaded_script, script_name)
2018-05-06 09:57:25,463 - ERROR - [MainThread] UM.Logger.logException [85]: AttributeError: module 'PostProcessingPlugin.PostProcessingPlugin.VaryTempWithHeightCura3' has no attribute 'VaryTempWithHeightCura3'