loading the workflow may result in missing nodes - use ComfyUI Manager to add missing nodes. The LLMs will be downloaded automatically

you may install the missing text combine node using git clone or the git import of the manager

https://github.com/ALatentPlace/ComfyUI_yanc

(remember to set the securtity level to WEAK: Path ComfyUI\custom_nodes\ComfyUI-Manager find config.ini and edit with a texteditor -> find security_level = normal -> overwrite normal with weak)