fix: fix typo in english translation

Closes #68

src/migration/migrationHelpers.js

@@ -20,14 +20,14 @@ import { getGame } from "../utils/utils.js";
  * @returns {Promise<void>} A promise that resolves once the migration is complete
  */
 export async function migrateCollection(collection, migrateDocument) {
-    const { documentType } = collection.constructor;
+    const { documentName } = collection.constructor;
     for (const document of collection) {
-        logger.info(`Migrating ${documentType} document ${document.name} (${item.id})`);
+        logger.info(`Migrating ${documentName} document ${document.name} (${document.id})`);
         try {
             await migrateDocument(document);
         } catch (err) {
             logger.error(
-                `Error during migration of ${documentType} document ${document.name} (${document.id}), continuing anyways.`,
+                `Error during migration of ${documentName} document ${document.name} (${document.id}), continuing anyways.`,
                 err,
             );
         }
@@ -85,7 +85,7 @@ export function getSceneMigrator(migrateActor) {
     return async (scene) => {
         if (migrateActor) {
             for (const token of scene.tokens) {
-                if (!token.actorLink) {
+                if (!token.actorLink && token.actor) {
                     await migrateActor(token.actor);
                 }
             }