GeoOperations.ScriptEval' is not a registered SSE function

[LauraMorris]

I am trying to use the dissolve function of geoanalytics but keep getting the following error:

'GeoOperations.ScriptEval' is not a registered SSE function. Ensure the plugin is running and try restarting Qlik Engine.

Geoanalytics is working as I can see maps on my dashboards it's only when I try to run the following in the data load editor:

RegionsAreas:
Load * Extension GeoOperations.ScriptEval('
Select DissolvedPolygon as RegionPolygon, ukregion FROM Dissolve(dissolveField="ukregion",
resolution="Source", areaDatasetKeyField="area")
DATASOURCE regions INTABLE keyField="area", namedAreaField="area"', Regions);

I have added the connection string from my list of connections on the right of the dataloadeditor.