Hi, the same here. I do not understand why it does not work. Hope it’s just a bug and will be resolved soon.
Hey, @Dhruval
I also answered this question to @olaszsarokagival here:
You can have only 3 keywords per free account. How many do you currently have?
Here, https://manychat.com/pricing, you can find the full comparison between free and pro plan.
Let me know if this helps 
Hi, @rodrigo_silvano
Thank you for resolving the issue.
I have the same issue, and i only have 3 keywords set up. Don´t know what to do next.
Hey, @Gerstin
Go to https://manychat.com/pricing and check if is everything under the limits.
Example:
You can’t have more than 10 tags in your account
or
You can’t have more than 3 keywords
Also, check your automations to understand if you’re not using any PRO features like conditions, smart delays, external requests, etc.
Gustavo has already replied to you here: