Show - Error on loading data

/Pages/Admission/AdmissionAdmin.aspx

When we import admission setup at that time it throw error 

https://naunihaalcentralschool.onlinevidyalaya.net/Pages/BaseFramework/Security/Login.aspx?OrgGroupId=2429

Username - Admin
Password - NCSBHATKAL

Imported from 2019-20 to 2020-21