diff --git a/web/app/controllers/problem.php b/web/app/controllers/problem.php
index 1575b6d..bd23685 100644
--- a/web/app/controllers/problem.php
+++ b/web/app/controllers/problem.php
@@ -101,7 +101,7 @@ if (UOJContest::cur()) {
 
 $submission_requirement = UOJProblem::cur()->getSubmissionRequirement();
 $custom_test_requirement = UOJProblem::cur()->getCustomTestRequirement();
-$custom_test_enabled = $custom_test_requirement && $pre_submit_check_ret === true;
+$custom_test_enabled = $custom_test_requirement && $pre_submit_check_ret === true && UOJProblem::info('type') != 'remote';
 
 function handleUpload($zip_file_name, $content, $tot_size) {
 	global $is_participating;
@@ -171,11 +171,8 @@ if ($custom_test_enabled) {
 	$custom_test_form->runAtServer();
 }
 
-$can_use_zip_upload = true;
-foreach ($submission_requirement as $req) {
-	if ($req['type'] == 'source code') {
-		$can_use_zip_upload = false;
-	}
+if (empty($submission_requirement)) {
+	$no_more_submission = '当前题目未配置提交文件，请联系管理员！';
 }
 
 if ($pre_submit_check_ret === true && !$no_more_submission) {
@@ -274,12 +271,12 @@ if (UOJContest::cur()) {
 					</div>
 					<div class="tab-pane" id="submit">
 						<?php if ($pre_submit_check_ret !== true) : ?>
-							<h3 class="text-warning"><?= $pre_submit_check_ret ?></h3>
+							<p class="text-warning h4"><?= $pre_submit_check_ret ?></p>
 						<?php elseif ($no_more_submission) : ?>
-							<h3 class="text-warning"><?= $no_more_submission ?></h3>
+							<p class="text-warning h4"><?= $no_more_submission ?></p>
 						<?php else : ?>
 							<?php if ($submission_warning) : ?>
-								<h3 class="text-warning"><?= $submission_warning ?></h3>
+								<p class="text-warning h4"><?= $submission_warning ?></p>
 							<?php endif ?>
 							<?php if (isset($zip_answer_form)) : ?>
 								<?php $zip_answer_form->printHTML(); ?>
diff --git a/web/app/models/UOJProblem.php b/web/app/models/UOJProblem.php
index d5ca165..f836e3b 100644
--- a/web/app/models/UOJProblem.php
+++ b/web/app/models/UOJProblem.php
@@ -460,10 +460,6 @@ class UOJProblem {
 		return $key === null ? $extra_config : $extra_config[$key];
 	}
 	public function getCustomTestRequirement() {
-		if ($this->info['type'] == 'remote') {
-			return [];
-		}
-
 		$extra_config = json_decode($this->info['extra_config'], true);
 
 		if (isset($extra_config['custom_test_requirement'])) {
@@ -559,11 +555,16 @@ class UOJProblem {
 	}
 
 	public function userCanUploadSubmissionViaZip(array $user = null) {
-		foreach ($this->getSubmissionRequirement() as $req) {
+		$submission_requirement = $this->getSubmissionRequirement();
+
+		if (empty($submission_requirement)) return false;
+
+		foreach ($submission_requirement as $req) {
 			if ($req['type'] == 'source code') {
 				return false;
 			}
 		}
+
 		return true;
 	}