I had the same problem. I uninstalled and installed it again, but started to have the following problem - An error occured while executing an integration action: Failed to start Whatsapp conversation using template "new_guide" and language "en_US" - Error: {"message":"(#100) Invalid parameter","type":"OAuthException","code":100,"error_data":{"messaging_product":"whatsapp","details":"Invalid parameter"},"fbtrace_id":"Af7zWzaxXwjVNYZYZACRvfq"}have