To make this post short, this is the tool called MP3 Repair Tool. Already self explanatory. It was published in 2005!
https://www.softpedia.com/get/Multimedia/Audio/Other-AUDIO-Tools/MP3RepairTool.shtml
Or direct download from gdrive.
https://drive.google.com/file/d/1p6YHNzEiP75uPP1g36IXEd4l1GnJ6wrv/view?usp=share_link
Select the file and the tool will generate a new repaired file in the same directory. Simple and sweet. May not work for all corrupted files, but it works for me once at least.
