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Related to COPPA compliance. Both "enabled" and "deny users under the age of 13" cause error. Server currently on PHP 8.1.

Two errors created:

<error>
	<dateline>1696168504</dateline>
	<script>member.php</script>
	<line>766</line>
	<type>2</type>
	<friendly_type>Warning</friendly_type>
	<message>Undefined array key "coppauser"</message>
	<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/member.php:766]
</back_trace>
</error>

<error>
	<dateline>1696168504</dateline>
	<script>member.php</script>
	<line>766</line>
	<type>2</type>
	<friendly_type>Warning</friendly_type>
	<message>Undefined variable $under_thirteen</message>
	<back_trace>#0  errorHandler->error() called at [/inc/class_error.php:153]
#1  errorHandler->error_callback() called at [/member.php:766]
</back_trace>
</error>

Find lines 740-745:

// User is <= 13, we mark as a coppa user
if($bdaytime >= mktime(0, 0, 0, my_date('n'), my_date('d'), my_date('Y')-13))
{
	my_setcookie("coppauser", 1, -0);
	$under_thirteen = true;
}

and insert:

else
{
    my_setcookie("coppauser", 0, -0);
    $under_thirteen = false;
}