Fix your code (java, javascript, typescript, c, c++, etc.)

The process consists of downloading and configuring the project in a local environment, testing for reported and unreported errors, conflict resolution (code refactoring if necessary) and finally the project is uploaded to a new branch on github or submitted . through a compressed file by wetransfer, drive, etc.
In addition to requesting the required service (bug fixes, developing unit tests, developing new classes, etc.), you can specify that you want comments to be added explaining the code in detail.