plugin-republic/number-field-validation.php

## number-field-validation.php
<?php
// Add this if you want to prevent non-required number fields from validating min or max values
add_filter( 'pewc_only_validate_number_field_value_if_field_required', '__return_true' );
?>
	<?php
	// Add this if you want to prevent non-required number fields from validating min or max values
	add_filter( 'pewc_only_validate_number_field_value_if_field_required', '__return_true' );
	?>