Portal Data Download > Error on loading data > After Click on button

Web Config
<add key="DefaultOrgId" value="2016"/>
<add key="DefaultOrgGroupId" value="2016"/>

Admin : 2600 (Local)
<add key="SyncServiceUrl" value="http://test.onlinevidyalaya.net" />

Test.Onlinevid...(Poral)
<add name="NetVidyalayaPortal"  connectionString="server=localhost; database=NetVidyalayaTest; UID=sa; Password=sa@123456; Max Pool Size=150;" providerName="System.Data.SqlClient" /> 