diff --git a/src/modals/login.ts b/src/modals/login.ts
index 41d6c6c..371a9fe 100644
--- a/src/modals/login.ts
+++ b/src/modals/login.ts
@@ -1,5 +1,6 @@
-import { App, ButtonComponent, Modal, Setting } from "obsidian";
+import { App, ButtonComponent, Modal, Setting, setIcon, setTooltip } from "obsidian";
 import KSyncPlugin from "src/main";
+import { WarningModal } from "./warning";
 
 export class LoginModal extends Modal {
 	private login: string;
diff --git a/src/modals/warning.ts b/src/modals/warning.ts
new file mode 100644
index 0000000..a8a9f9e
--- /dev/null
+++ b/src/modals/warning.ts
@@ -0,0 +1,24 @@
+import { App, Component, MarkdownRenderer, Modal } from "obsidian";
+import KSyncPlugin from "src/main";
+
+export class WarningModal extends Modal {
+    public plugin: KSyncPlugin;
+    public text: string;
+	constructor(app: App, plugin: KSyncPlugin, text: string) {
+		super(app);
+
+		this.plugin = plugin;
+        this.text = text;
+	}
+
+	async onOpen() {
+		const { contentEl } = this;
+		MarkdownRenderer.render(this.app, `# ${this.text}`, contentEl, "", new Component());
+	}
+
+	onClose() {
+		const { contentEl } = this;
+
+		contentEl.empty();
+	}
+}
\ No newline at end of file
diff --git a/src/services/account.ts b/src/services/account.ts
index 671dd65..a604e20 100644
--- a/src/services/account.ts
+++ b/src/services/account.ts
@@ -1,4 +1,5 @@
 import KSyncPlugin from "src/main";
+import { WarningModal } from "src/modals/warning";
 
 export class Account {
     public plugin: KSyncPlugin;
@@ -36,11 +37,13 @@ export class Account {
             login: email, 
             password: password
         })).data
+        if(!data) return new WarningModal(this.plugin.app, this.plugin, "Сервер не ответил").open();
+        if(data.error) return new WarningModal(this.plugin.app, this.plugin, "Неправильный Логин или пароль").open();
         this.plugin.settings.token = data.token
         this.plugin.saveSettings()
 
         const user = await this.GetData();
-        this.plugin.logger.info("Используем аккаунт "+user.email)
+        this.plugin.logger.info(`Входим в аккаунт ${user.email}`)
         this.data = user;
     }
 
diff --git a/styles.css b/styles.css
index b41376a..a79cee0 100644
--- a/styles.css
+++ b/styles.css
@@ -15,6 +15,21 @@ If your plugin does not need CSS, delete this file.
     border-radius: var(--input-radius);
 }
 
+.warning {
+    width: 100%;
+    height: fit-content;
+    border: var(--input-border-width) solid var(--background-modifier-border);
+    border-radius: var(--input-radius);
+    background-color: var(--color-red);
+    padding: 5px;
+    margin-bottom: 5px;
+}
+
+.warning .text {
+    margin: 15px;
+    font-size: var(--font-ui-large);
+}
+
 .log-list {
     list-style-type: none;
     padding: 5px;