PHP Warning wp-parsidate ارور PHP

سلام .
نسخه وردپرس آخرین نسخه
PHP نسخه 8

[24-Mar-2022 05:53:01 UTC] PHP Warning:  Undefined array key 0 in /home/.../public_html/wp-content/plugins/wp-parsidate/includes/fixes-permalinks.php on line 255
[24-Mar-2022 05:53:01 UTC] PHP Warning:  Undefined array key 1 in /home/.../public_html/wp-content/plugins/wp-parsidate/includes/fixes-permalinks.php on line 256
[24-Mar-2022 05:53:01 UTC] PHP Warning:  Undefined array key 2 in /home/.../public_html/wp-content/plugins/wp-parsidate/includes/fixes-permalinks.php on line 257

$query->set( ‘year’, $var[0] );
$query->set( ‘monthnum’, $var[1] );
$query->set( ‘day’, $var[2] );

سازنده افزونه لطفا مشکل رو بررسی و مرتفع نمایید. با تشکر