Constituency error in reports

Sorry I am still new here. Can you kindly answer my query please ?Â

You’re most likely to get replies during the work week, not on Friday
nights or Saturdays.

 Yes I deleted the field, and discovered that I had to recreate it. What is
 the constituency field used for exactly ?

You should have been able to just search for it and re-enable it.
You can read about that field here:

It is optional for RTIR, but obviously the custom RTIR Reports were
depending on it too heavily.

 Is there a way of generating detailed reports with pie charts maybe, and
 reports based on custom fields ?

I suspect you want to build a search in RTIR → Search and then click
on the Chart link.