iOS Development : Fix bugs & make my app error free

I am looking for a skilled iOS Developer to help me fix bugs and make my app error free. The specific bugs or errors I am experiencing are crashes, efficient camera use , better memory management and my app is currently compatible with iOS13 and above. I want the bugs fixed within a week. I am looking for someone who has experience developing applications for Apple's mobile operating system and who understands how to code to maintain the highest quality app performance and functionality. If you think you have the right skills and passion to help me, please apply for the project and we can discuss further details. Note: Its an app for an internal prototype (MVP) & not a final app for production.