Need help to fix issues to run app in latest xcode.

When I run app in xcode getting error. I need help to run app error free in latest xcode without losing any functionality. The error where I am stuck is in the attached screenshot. Please note if there any other issue comes after fixing the latest error you have to fix them as well.

***Its remote job and you have to do it through teamviewer. If you are not comfortible with that please don't submit your proposal.