Fix Corrupt Quickbooks Company File

General information for the business: Small R & D company in plumbing industry Kind of support: Software Description of support work: We suspect our Quickbooks company file is corrupted as : a) entries disappear from reconciliation screen b) Email address facility stopped working c) payments disappear from customer screen but are in bank screen d) Payments disappear from bank screen but are in customer screen e) Numerous software crashes Quickbooks Desktop Premier 2014 version Extra notes: Work require to be in strict confidence. Will email company file.