Manage Report in administration

Hi, i need your help when i try to define a new report in cohort querry it displays this error. Your help will be aprreciate.

Are you able to reproduce the problem on this server? https://qa-refapp.openmrs.org/

Yes, still reproduce the problem.

What are the exact steps to reproduce on that server?

in the Administration on the section Reports ,select Manage reports and click on " Create Cohort Report"

Here it is without any errors: https://qa-refapp.openmrs.org/openmrs/admin/reports/cohortReport.form

sorry for the delay, still giving me the same error when i click “save” .

I was not clear the error comes after i filled all the details to create cohort Report and i click on “save”.