diff --git a/src/main.ts b/src/main.ts
index 3adb218..50114ea 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,13 +1,19 @@
 import { Plugin, Notice } from "obsidian";
-import { AutoClassifierSettingTab, AutoClassifierSettings, DEFAULT_SETTINGS, OutLocation, OutType} from "src/settings";
+import {
+	AutoClassifierSettingTab,
+	AutoClassifierSettings,
+	DEFAULT_SETTINGS,
+	OutLocation,
+	OutType,
+} from "src/settings";
 import { ViewManager } from "src/view-manager";
-import { ChatGPT } from 'src/api';
+import { ChatGPT } from "src/api";
 
 enum InputType {
 	SelectedArea,
 	Title,
 	FrontMatter,
-	Content
+	Content,
 }
 
 export default class AutoClassifierPlugin extends Plugin {
@@ -19,32 +25,32 @@ export default class AutoClassifierPlugin extends Plugin {
 
 		// Commands
 		this.addCommand({
-			id: 'classify-tag-selected',
-			name: 'Classify tag from Selected Area',
+			id: "classify-tag-selected",
+			name: "Classify tag from Selected Area",
 			callback: async () => {
 				await this.runClassifyTag(InputType.SelectedArea);
-			}
+			},
 		});
 		this.addCommand({
-			id: 'classify-tag-title',
-			name: 'Classify tag from Note Title',
+			id: "classify-tag-title",
+			name: "Classify tag from Note Title",
 			callback: async () => {
 				await this.runClassifyTag(InputType.Title);
-			}
+			},
 		});
 		this.addCommand({
-			id: 'classify-tag-frontmatter',
-			name: 'Classify tag from FrontMatter',
+			id: "classify-tag-frontmatter",
+			name: "Classify tag from FrontMatter",
 			callback: async () => {
 				await this.runClassifyTag(InputType.FrontMatter);
-			}
+			},
 		});
 		this.addCommand({
-			id: 'classify-tag-content',
-			name: 'Classify tag from Note Content',
+			id: "classify-tag-content",
+			name: "Classify tag from Note Content",
 			callback: async () => {
 				await this.runClassifyTag(InputType.Content);
-			}
+			},
 		});
 
 		this.addSettingTab(new AutoClassifierSettingTab(this.app, this));
@@ -57,18 +63,17 @@ export default class AutoClassifierPlugin extends Plugin {
 		await this.saveData(this.settings);
 	}
 
-	async onunload() {
-	}
+	async onunload() {}
 
 	// create loading spin in the Notice message
 	createLoadingNotice(text: string, number = 10000): Notice {
-		const notice = new Notice('', number);
-		const loadingContainer = document.createElement('div');
-		loadingContainer.addClass('loading-container');
+		const notice = new Notice("", number);
+		const loadingContainer = document.createElement("div");
+		loadingContainer.addClass("loading-container");
 
-		const loadingIcon = document.createElement('div');
-		loadingIcon.addClass('loading-icon');
-		const loadingText = document.createElement('span');
+		const loadingIcon = document.createElement("div");
+		loadingIcon.addClass("loading-icon");
+		const loadingText = document.createElement("span");
 		loadingText.textContent = text;
 		//@ts-ignore
 		notice.noticeEl.empty();
@@ -96,28 +101,25 @@ export default class AutoClassifierPlugin extends Plugin {
 		// ------- [API Key check] -------
 		if (!this.settings.apiKey) {
 			new Notice(`⛔ ${this.manifest.name}: You shuld input your API Key`);
-			return null
+			return null;
 		}
 		// ------- [Input] -------
 		const refs = this.settings.commandOption.refs;
 		// reference check
 		if (this.settings.commandOption.useRef && (!refs || refs.length == 0)) {
 			new Notice(`⛔ ${this.manifest.name}: no reference tags`);
-			return null
+			return null;
 		}
 
-		// Set Input 
-		let input: string | null = '';
+		// Set Input
+		let input: string | null = "";
 		if (inputType == InputType.SelectedArea) {
 			input = await this.viewManager.getSelection();
-		}
-		else if (inputType == InputType.Title) {
+		} else if (inputType == InputType.Title) {
 			input = await this.viewManager.getTitle();
-		}
-		else if (inputType == InputType.FrontMatter) {
+		} else if (inputType == InputType.FrontMatter) {
 			input = await this.viewManager.getFrontMatter();
-		}
-		else if (inputType == InputType.Content) {
+		} else if (inputType == InputType.Content) {
 			input = await this.viewManager.getContent();
 		}
 
@@ -129,17 +131,20 @@ export default class AutoClassifierPlugin extends Plugin {
 
 		// Replace {{input}}, {{reference}}
 		let user_prompt = this.settings.commandOption.prmpt_template;
-		user_prompt = user_prompt.replace('{{input}}', input);
-		user_prompt = user_prompt.replace('{{reference}}', refs.join(','));
-		user_prompt = user_prompt.replace('{{max_suggestions}}', String(this.settings.commandOption.max_suggestions));
+		user_prompt = user_prompt.replace("{{input}}", input);
+		user_prompt = user_prompt.replace("{{reference}}", refs.join(","));
+		user_prompt = user_prompt.replace(
+			"{{max_suggestions}}",
+			String(this.settings.commandOption.max_suggestions),
+		);
 
 		const system_role = this.settings.commandOption.prmpt_template;
 
 		// ------- [API Processing] -------
 		// Call API
 		const responseRaw = await ChatGPT.callAPI(
-			system_role, 
-			user_prompt, 
+			system_role,
+			user_prompt,
 			this.settings.apiKey,
 			this.settings.commandOption.model,
 			this.settings.commandOption.max_tokens,
@@ -150,48 +155,77 @@ export default class AutoClassifierPlugin extends Plugin {
 			this.settings.baseURL,
 		);
 		try {
-			const response = JSON.parse(responseRaw);
-			const resReliability = response.reliability;
-			const resOutputs = response.outputs;
+			try {
+				const response = JSON.parse(responseRaw);
+				const resReliability = response.reliability;
+				const resOutputs = response.outputs;
 
-			// Validate response format
-			if (!Array.isArray(resOutputs)) {
-				new Notice(`⛔ ${this.manifest.name}: output format error (expected array)`);
+				// Validate response format
+				if (!Array.isArray(resOutputs)) {
+					new Notice(`⛔ ${this.manifest.name}: output format error (expected array)`);
+					return null;
+				}
+
+				// Avoid low reliability
+				if (resReliability <= 0.2) {
+					new Notice(
+						`⛔ ${this.manifest.name}: response has low reliability (${resReliability})`,
+					);
+					return null;
+				}
+
+				// ------- [Add Tags] -------
+				for (const resOutput of resOutputs) {
+					// Output Type 1. [Tag Case] + Output Type 2. [Wikilink Case]
+					if (
+						commandOption.outType == OutType.Tag ||
+						commandOption.outType == OutType.Wikilink
+					) {
+						if (commandOption.outLocation == OutLocation.Cursor) {
+							this.viewManager.insertAtCursor(
+								resOutput,
+								commandOption.overwrite,
+								commandOption.outType,
+								commandOption.outPrefix,
+								commandOption.outSuffix,
+							);
+						} else if (commandOption.outLocation == OutLocation.ContentTop) {
+							this.viewManager.insertAtContentTop(
+								resOutput,
+								commandOption.outType,
+								commandOption.outPrefix,
+								commandOption.outSuffix,
+							);
+						}
+					}
+					// Output Type 3. [Frontmatter Case]
+					else if (commandOption.outType == OutType.FrontMatter) {
+						this.viewManager.insertAtFrontMatter(
+							commandOption.key,
+							resOutput,
+							commandOption.overwrite,
+							commandOption.outPrefix,
+							commandOption.outSuffix,
+						);
+					}
+					// Output Type 4. [Title]
+					else if (commandOption.outType == OutType.Title) {
+						this.viewManager.insertAtTitle(
+							resOutput,
+							commandOption.overwrite,
+							commandOption.outPrefix,
+							commandOption.outSuffix,
+						);
+					}
+				}
+				new Notice(`✅ ${this.manifest.name}: classified with ${resOutputs.length} tags`);
+			} catch (error) {
+				new Notice(`⛔ ${this.manifest.name}: JSON parsing error - ${error}`);
 				return null;
 			}
-
-			// Avoid low reliability
-			if (resReliability <= 0.2) {
-				new Notice(`⛔ ${this.manifest.name}: response has low reliability (${resReliability})`);
-				return null;
-			}
-
-			// ------- [Add Tags] -------
-			for (const resOutput of resOutputs) {
-		// Output Type 1. [Tag Case] + Output Type 2. [Wikilink Case]
-		if (commandOption.outType == OutType.Tag || commandOption.outType == OutType.Wikilink) {
-			if (commandOption.outLocation == OutLocation.Cursor) {
-				this.viewManager.insertAtCursor(resOutput, commandOption.overwrite, commandOption.outType, commandOption.outPrefix, commandOption.outSuffix);
-			} 
-			else if (commandOption.outLocation == OutLocation.ContentTop) {
-				this.viewManager.insertAtContentTop(resOutput, commandOption.outType, commandOption.outPrefix, commandOption.outSuffix);
-			}
-		}
-		// Output Type 3. [Frontmatter Case]
-		else if (commandOption.outType == OutType.FrontMatter) {
-			this.viewManager.insertAtFrontMatter(commandOption.key, resOutput, commandOption.overwrite, commandOption.outPrefix, commandOption.outSuffix);
-		}
-		// Output Type 4. [Title]
-		else if (commandOption.outType == OutType.Title) {
-			this.viewManager.insertAtTitle(resOutput, commandOption.overwrite, commandOption.outPrefix, commandOption.outSuffix);
-		}
-			}
-			new Notice(`✅ ${this.manifest.name}: classified with ${resOutputs.length} tags`);
 		} catch (error) {
 			new Notice(`⛔ ${this.manifest.name}: ${error}`);
 			return null;
 		}
 	}
 }
-
-