Use correct context term.

islandlives.module

@@ -26,7 +26,7 @@ function islandlives_pathauto_pattern_alter(PathautoPatternInterface $pattern, a
   // Taxonomy Terms: Only act if the pattern has machine name `person_vocabulary`.
   if ($pattern->id() == 'person_vocabulary') {
     // If term has no PID...
-    $term = $context['data']['taxonomy_term'];
+    $term = $context['data']['term'];
     $pid = $term->get('field_pid')->value;
     if ($pid == NULL) {
       // Replace the PID with the TID in the alias.