Biest #1259

Closes #1259 and #1058

Merge request studip/studip!1053

resources/vue/store/courseware/courseware.module.js

@@ -272,13 +272,12 @@ export const actions = {
     },
 
     async createFile(context, { file, filedata, folder }) {
-        const termId = file.relationships['terms-of-use'].data.id;
+        const termId = file?.relationships['terms-of-use']?.data?.id ?? null;
         const formData = new FormData();
         formData.append('file', filedata, file.attributes.name);
         if (termId) {
             formData.append('term-id', termId);
         }
-
         const url = `folders/${folder.id}/file-refs`;
         let request = await state.httpClient.post(url, formData, {
             headers: {