yaml flow code using system.commonresponse to display cards is not working

Summary:

We have a logic written in yaml code to display data retrieved by custom component in card layout. This was migrated to flow designer to leverage the LLM integration and the converted response item is showing free mark up expression error.

Content (please ensure you mask any confidential information):

We have a logic written in yaml code to display data retrieved by custom component in card layout. This was migrated to flow designer to leverage the LLM integration and the converted response item is showing free mark up expression error. Can you please show some insights on this like what all changes are needed in the code other than including iterator expression.