#3 above shows the error comes from a call of line 113 in the Inc/Claz/Email.php file. This does not match the current version of this source currently checked into github. Please download and install the current version of Fearless359 SI and test again. There was a specific change to the email security logic that was in version 2019.2.7.
If you have a gmail account, you might try routing through it. Here are the settings I use for testing sans username and password.
email.host = smtp.gmail.com
email.smtp_auth = true
email.smtpport = 465
email.secure = SSL
If the problem persists, excluding the username and password, send me the settings you have in custom.config.php for the email configuration.