help notification sms

Cars help please, I tried to install the notification by sms but I'm not getting it, can someone help me identifying what my error is.

in the logs nothing happens but the sms is not sent

Erro print

The error is not from an official Traccar SMS service. It looks like an error message from your own Node-based service.

are you referring to my ubuntu vps?

I'm talking about your SMS service. This error message is not from our service.

I'm using the traccar sms gateway app and I can send sms normally through it, but when I put it on the platform this message appears on the screen

I don't think you're giving us all the information because the error message doesn't match the config.

I'm configuring notifications through sms, as above print I did all the necessary configuration to trigger notifications, but when I shoot through web and firebase, the sending is normal, but when I add the notification through web, firebase, sms it shows this error not time that I test the notification through the web panel

version 5.3

<entry key='notificator.types'>web,mail,sms</entry>
<entry key='notificator.sms.manager.class'>org.traccar.sms.HttpSmsClient</entry>
<entry key='sms.http.url'>https://www.traccar.org/sms/</entry>
<entry key='sms.http.authorization'>kekeykeykekey</entry>
<entry key='sms.http.template'>
            {
                "to": "{phone}",
                "message": "{message}"
            }
</entry>