JWT is not configurated properly
If you get this error after logging in, add this line to your wp-config.php file:
You can use any random string, it's best to make it long and complex. For example:
If you copy/paste the code above, make sure to change the secret key string.
No route was found matching the URL and request method.
This means the WP-API route you are trying to use does not exist. Here are some common solutions: