App error on nexus 5x after oreo

[Android Central Question]

My app worked for a few days after the update, but now i get this message. I can listen to the audio portion of Through The Word but when I switch to the text, I get this.
ERROR: The IP key is no longer supported. Please use your access key, the testing key 'TEST'
Error cleaning text: TypeError: Cannot call method 'toString' of null

 

[B. Diddy]

Welcome to Android Central! Can you clarify -- are you an app developer, or an end-user? Which app are you referring to?