Error: Invalid prompt template

[1610ayush]

I have 5 use cases like text summarisation, keyword generation... for which i used Prompt retriever and connected all 5 to multi prompt chain and also using chat openAI for my language model but when i am giving input in chat then it is throwing this error
Error: Invalid prompt template.

This was my input to chat
what is sentiment of this feedback "the feature updates are great, my experience using neverinstall is much more smooth now (: just wishing the microphone-camera functionality gets introduced soon"