Hi @treibalen
Thank you for your reply. The API key was created in the Stripe Dashboard and independent from WooCommerce. All I did was copy and paste the API key (around July) into the WooCommerce payment gateway settings for Stripe. I have two websites listed under the Stripe admin dashboard. I did at one point accidentally place the API key for one site on another and saved. I’m not sure if that would trigger the Stripe API key to change.
I realize the fix is as easy as inserting the new key, but it is also about preventing this from happening in the future. Perhaps if a bug report is not open, one should be open. I wonder if it was because I inputted the key from one site to the other WooCommerce site, maybe this would be worth testing on your end.
Because I don’t have much more time to spend on this issue and I verified the key was mine before a new one was randomly generated in Stripe, I will just change to the new key now and get this resolved.