Back in 2014, I started mining LTC with a pool site called litecoinrain.org (where my worker was assigned). It generated an address. At the time I added the address to my wallet, but it would never sync. to show my balance. However, using the various websites, it shows my balance (about 8 coins). I never did resolve the issue and abandoned it.
Now seeing the significant price increases, I dusted off my old PC, virtually untouched (aside from updating to windows 10). Re-traced my steps, found my wallet address, let it attempt to sync, but it still showed zero balance, but it says the alert key has been compromised. Again, went to one of the various websites, and the balance was exactly the same (8 coins). i downloaded Litecoin core wallet, which appeared to import my settings, but balance is still showing zero.
I have a feeling my wallet address that was generated was within litecoinrain.org and that website is no longer accessible. What are my options?