Undefined notices

After activating the plugin and selecting Other SMTP, I saw these two notices:

Notice: Undefined index: url in /home/user/public_html/wp-content/plugins/wpforms-lite/src/Forms/IconChoices.php on line 127

Notice: Undefined index: path in /home/user/public_html/wp-content/plugins/wpforms-lite/src/Forms/IconChoices.php on line 128

FYI, I had these two constants defined while debugging another issue.

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_DISPLAY', true );