We are using ArcGIS collector version 18.0.3 and ArcGIS portal, Desktop & server 10.6.
Hardware is Samsung Galaxy Tab S2 for using collector app
We have design a survey for conducting Annual preventive Maintenance for our installed assets using collector offline. We have successfully complete the survey but when we try to syn data its gives error
"An error occurred while Synchronizing edits."
Extension not found
Same error shows on ArcGIS server manager.
Need help to resolved this issue