Your key is 32 zeros

For this Eye-Fi card the key is 32 zeros, because your card does not support connecting to other devices (Infrastructure Mode).

Open this link on the iPad or iPhone where Wifibooth is installed, to set the key.

wifibooth://setEyeFiKey/00-00-00-00-00-00/00000000000000000000000000000000

For more information please follow the steps in this article.