Can't perform analysis tasks after upgrade

I also do upgrade from 2.34 to 2.36, can start up, but can’t do data analysis task.

@linxd could you please give further details? Which app are you specifically facing the issue with? Screenshots, error logs will be helpful.

I found the problem is caused by importing events with all null DE values.

mirth http → web api—>DHIS2 instance, because of importing with option “idschema=name”, reporting there are no dataelement (de name 1,…), but imported events with null DE value.