Who has used the microsoft bot framework?

I'm new to the bot framework and i'm wondering if someone could help me with a problem i have with the bot. I'm using NodeJS to develop the bot while my text-editor is visual studio code.

The screenshots show my code. Please can someone tell me what i'm doing wrong? when i run the bot emulator after getting my name it shows the message:"Oops.Something went wrong and we need to start over".