Hello,
1) I see that you installed WP Mail SMTP plugin. Either choose the Mailer and fill in appropriate fields for the mailer https://prnt.sc/104yvb4 or if you want to use the default mailer then disable plugin. Once plugin enabled we don’t get test email but it’s there once plugin disabled.
2) Points and rewards plugin is third-party plugin and we don’t have pre-created examples of the email for this. Provide us with FTP access to check if we could add support of emails for this plugin.
Regards