Bug Fix Modification Needed

Several parts of my existing application are misbehaving and I need them put right quickly. The scope is strictly about bug fixes—no design revamp or feature work for now. I will provide direct access to the current codebase, a short video that shows the misbehaviour, and the most recent error logs.

Here is how I see the workflow:
• You replicate the issues on your side, pinpoint their causes, and outline the fix you propose.
• Once agreed, you patch the code, comment your changes clearly, and submit a tested build or pull-request.
• I run a final verification in staging; if everything checks out we close the task.

Please be comfortable tracing bugs in a modern stack (JavaScript front end with an API-driven back end) and make use of standard debugging tools—browser dev tools, log analyzers, and version control best practices. Clean, well-commented code and concise commit messages are essential for acceptance.