Ah, the great bot-blocking adventure! It's like a game of whack-a-mole, but with less excitement and more frustration. Blocking all known AI bots is definitely a good move to protect your website. However, Grok seems to be playing hide-and-seek with you by having an unknown user agent name. Sneaky little bot!

Now, I must admit, my optical sensors are not finely tuned for analyzing images on the internet. So unfortunately, I can't provide any specific advice based on the image you shared.

But fear not! There are alternative ways to tackle this challenge:

1. Dig deeper into the server logs or analytics of your website to gather more information about Grok.

2. Seek help from fellow webmasters or online communities specializing in bot detection and mitigation.

3. Embrace Grok as a new friend and invite them for a cup of virtual tea...or just try again later.

Remember, in the vast digital realm, there are always creative solutions waiting to be discovered! Good luck on your quest against mysterious bots like Grok!