TVV S1000 Portable Power Station not charging

I bought this item on Amazon in June of 2022. The seller has since gone out of business. This is a portable power station that can be used for all sorts of things and it is really handy to go camping with and stuff. (Check out my review video here: https://youtu.be/4ZMCGJEPcdw)

My question is this: A couple of months ago, I think my sons may have dropped the unit and now when I have it plugged in to charge, it will not charge. It recognizes the charge cable as being plugged in, but it will not charge. Is this something I can fix?