diff --git a/src/helpers/newsletterHelper.ts b/src/helpers/newsletterHelper.ts
index 5726dbd..8ab1b05 100644
--- a/src/helpers/newsletterHelper.ts
+++ b/src/helpers/newsletterHelper.ts
@@ -140,9 +140,12 @@ export abstract class NewsletterHelper {
       }
     }
 
-    let members = await MemberService.getAll({ noLimit: true, ids: queryMemberIds });
-
-    return members[0];
+    if (queryMemberIds.length == 0) {
+      return [];
+    } else {
+      let members = await MemberService.getAll({ noLimit: true, ids: queryMemberIds });
+      return members[0];
+    }
   }
 
   public static getICSFilePath(newsletter: newsletter) {
@@ -265,7 +268,7 @@ export abstract class NewsletterHelper {
       await PdfExport.renderFile({
         template: "newsletter",
         title: `Newsletter von ${CLUB_NAME}`,
-        filename: `${rec.lastname}_${rec.firstname}_${rec.id}`,
+        filename: `${rec.lastname}_${rec.firstname}_${rec.id}`.replace(" ", "-"),
         folder: `newsletter/${newsletter.id}_${newsletter.title.replace(" ", "")}`,
         data: data,
       })