Looks like you are getting an error message that can be solved really quickly with a few easy steps.
The error "Invalid Token" usually appears when you try to log in to the Kaleyra Application page that has been open and in an ideal browser for a long time.
This occurs because there is a Google "Not a Robot" validation as well, which gets expired.
To fix this, simply follow the below steps:
- Close the browser you are trying to log into Kaleyra's Application from.
- Load a new Incognito web browser and try to log in from this page
- In case this does not help, clear your web browser's cache and cookies. If you are using Google Chome, all you would need to do is select “Menu” > “Settings” > “Privacy and Security” > “Clear browsing data“.
This should solve this error for you, and you should be good to go.