OPD Takes more time to load

As you said every network time is not taking more than two mins.But problem is still that page is not loading.Now patient datas are showing in Forms display control and in that also datas from january 02nd to jan 10 which is in the OPD, is not showing.All the other observations are there.Some of the case sheets also having same issue.Some case sheets are loading after waiting for hours. Also in console of chrome dev tools showing some errors.Screen shots are attached.