BUG IN QUICK OFFICE APP – Quick Docs Lite - Office Suite for PDF, Quickoffice, Microsoft Word and Class Notes edition Review

My Quick Office pro HD has not been working since May 2015. I even uninstalled in order to reinstall it but I couldn't find it on Apple Store any longer. How can I recover it because the app is not free and I am using it for computation and keeping business records? Could you please advise me on the necessary action to rectify the bug. Thank you. Ogunleye Joseph.
Review by Jossy_Jossy on Quick Docs Lite - Office Suite for PDF, Quickoffice, Microsoft Word and Class Notes edition.