This forum is for troubleshooting Apple Software Update for Windows, a software package for Windows designed to update Apple products that run on Windows, and not related in any way to yoru question. I suggest you post your question in the OS X forums.
Heyy vvanillasmoothiee. The same thing happened to me and I have researched on how to fix it but I cannot find ANYTHING! 😟 it really ***** but my app store wasn't really working before, so I tried re-downloading it, but after I deleted it, there was no way to get it back. I think we should work together on this so if you find anything AT ALL about fixing it, just let me know, and same to you.
Same thing happened to me, did you find anything? I was thinking maybe get it from another macbook on the thumbdrive and move it over? I dont know what else to try.