arcgis 3.15 geoengine stop working.

[JieCai]

One of our customized map web application stops working this afternoon due to the error:

JavaScript critical error at line 1084, column 150 in http://js.arcgis.com/3.15/esri/geometry/geometryEngine.js\n\nSCRIPT1009: Expected '}'

Would you please help?

Thanks!