RE: chatbot not working right in chatbot wars

I think your issue is you have 'Split Paragraphs' enabled in your bot's Learning & Settings.
This makes the bot process each sentence separately from a multi-sentence input.

Unclick this setting, or send a single sentence input.

'Please my mistake. What is a complete sentence?'

This does not match your pattern but,

'Please my mistake, what is a complete sentence?'

Would.