diff --git a/external/mirai-core/src/ConfigImpl.cpp b/external/mirai-core/src/ConfigImpl.cpp
index d380d52..c2c2cd1 100644
--- a/external/mirai-core/src/ConfigImpl.cpp
+++ b/external/mirai-core/src/ConfigImpl.cpp
@@ -5,9 +5,9 @@
  */
 
 #include "ConfigImpl.h"
+#include "nlohmann/json.hpp"
 #include <fstream>
 #include <iostream>
-#include <memory>
 #include <string>
 #include <vector>
 
@@ -16,6 +16,14 @@ namespace mirai
 ConfigImpl::ConfigImpl(const std::string &path) : path_(path)
 {
 	std::ifstream file(path_);
+	if (!file) {
+		configJson_ = nlohmann::json::parse(R"(
+			{
+				"files": []
+			}
+		)");
+		return;
+	}
 	configJson_ = nlohmann::json::parse(file);
 }
 
diff --git a/ui/MainView.slint b/ui/MainView.slint
index 516073e..5b3db7a 100644
--- a/ui/MainView.slint
+++ b/ui/MainView.slint
@@ -63,6 +63,10 @@ export component MainView inherits Rectangle {
 			VerticalLayout {
 				alignment: start;
 				spacing: 16px;
+				if Backend.visible_tasks.length == 0 : VText {
+					text: "There is no task to show";
+					horizontal-alignment: center;
+				}
 				for day[dayIndex] in Backend.visible_tasks: VerticalLayout {
 					Rectangle {
 						background: Palette.card-background;