diff --git a/web/src/routes/admin/diff/[submissionId]/+page.server.ts b/web/src/routes/admin/diff/[submissionId]/+page.server.ts
index 84a6ce7..4839185 100644
--- a/web/src/routes/admin/diff/[submissionId]/+page.server.ts
+++ b/web/src/routes/admin/diff/[submissionId]/+page.server.ts
@@ -1,7 +1,6 @@
-import { z } from 'zod';
 import type { PageServerLoad } from './$types';
 import * as Diff from 'diff';
-import { error } from '@sveltejs/kit';
+import { error, redirect } from '@sveltejs/kit';
 import { db } from '$lib/server/prisma';
 
 export const load = (async ({ params }) => {
@@ -11,7 +10,7 @@ export const load = (async ({ params }) => {
 	}
 	const submission = await db.submission.findUnique({ where: { id: submissionId } });
 	if (!submission) {
-		throw error(400, 'Invalid submission');
+		throw redirect(302, '/admin/reviews');
 	}
 	let diff = Diff.createTwoFilesPatch(
 		'expected',
diff --git a/web/src/routes/admin/reviews/+page.svelte b/web/src/routes/admin/reviews/+page.svelte
index 2937091..dfe2dcc 100644
--- a/web/src/routes/admin/reviews/+page.svelte
+++ b/web/src/routes/admin/reviews/+page.svelte
@@ -42,6 +42,8 @@
 		</div>
 	</div>
 	<div class="row justify-content-end">
-		<button type="submit" class="mt-3 col-1 btn btn-secondary">Submit</button>
+		<div class="text-end">
+			<button type="submit" class="mt-3 btn btn-secondary">Submit</button>
+		</div>
 	</div>
 </form>