Bitcoin Client Software and Version Number:0.20.1
Operating System: Windows 10
System Hardware Specs:8 GB Ram/120 gb ssd - 2TB External SSD
Description of Problem: I downloaded the entire blockchain up to dec 27, 2020 but today when I went to open bitcoin core, it seemed like if it was the first time I was opening the program when in fact it is not. I had created and backed up 2 wallets and have many gigabytes of the blockchain. how do I resume syncincg? I did not check to have it pruned, given I wanted the whole blockchain. Help

After it opened I clicked on a different folder (external ssd->chainstate (looking back I should have probably selected a different folder because now within that chainstate folder I now have another chainstate folder that was created today ) to redownload the blockchain, but I dont want to redownload it since I am only like 4 days out of sync instead of years.

I am very new to the technical aspects, Liberal arts major, not cs major, so all of this is kind of digging into the weeds for me. https://ibb.co/VC0dkwc  [edit: added image]
Any Related Addresses: none
Any Related Transaction IDs: none
Screenshot of the problem:
Log Files from the Bitcoin Client: will get these if someone can tell me what folder to dig into?

thanks for help in advance!