diff --git a/src/commands/ui.show.ts b/src/commands/ui.show.ts
index ac76476..17e365a 100644
--- a/src/commands/ui.show.ts
+++ b/src/commands/ui.show.ts
@@ -34,12 +34,12 @@ function assignListeners(state: WorkspaceState, fsEdirorUri: vscode.Uri): void {
         async (tdoc) => {
             if (tdoc.document.fileName.includes(storageFileName)) {
                 await tdoc.document.save();
-                await state.setstore(
-                    tdoc.document
-                        .getText()
-                        .split("\n")
-                        .filter((val) => val !== "")
-                );
+                const newFilePaths = tdoc.document
+                    .getText()
+                    .split("\n")
+                    .map((v) => v.trim())
+                    .filter((val) => val !== "");
+                await state.setStore(newFilePaths);
             }
         }
     );
diff --git a/src/workspaceState.ts b/src/workspaceState.ts
index bc18cac..7dcd275 100644
--- a/src/workspaceState.ts
+++ b/src/workspaceState.ts
@@ -1,5 +1,7 @@
 import * as vscode from "vscode";
 import { storeKey } from "./config";
+import { pathToFileURL } from "url";
+import * as path from "path";
 
 /**
  * class that would hold the state for the current workspace, like opened editors[marked] update the state, manage context.workspaceState, fs store
@@ -7,10 +9,15 @@ import { storeKey } from "./config";
 export class WorkspaceState {
     // todo is it better to use only map? instead of array and set
     private _vsStore!: string[];
-    // will be used to fast check marked files so need to be always synced with _editors
+    /**
+     * will be used to fast check marked files so need to be always synced with _editors
+     */
     private _editorsSet!: Set<string>;
     private _context: vscode.ExtensionContext;
-    private _fsStorgePath: vscode.Uri; // folder path not file
+    /**
+     * folder path not file
+     */
+    private _fsStorgePath: vscode.Uri;
 
     constructor(context: vscode.ExtensionContext, fsStoragePath: vscode.Uri) {
         this._context = context;
@@ -19,7 +26,7 @@ export class WorkspaceState {
         this.vsStore = this._context.workspaceState.get(storeKey) || [];
     }
 
-    // todo take textdocument from input
+    // TODO: take textdocument from input
     async addMark(uri: vscode.Uri) {
         if (this._editorsSet.has(uri.fsPath)) {
             console.log("didnt saved new Mark because i already have it");
@@ -64,7 +71,7 @@ export class WorkspaceState {
      * maybe activiting GC way too much but whatever
      * @param newContent
      */
-    async setstore(newContent: string[]) {
+    async setStore(newContent: string[]) {
         this.vsStore = newContent;
         await this._updateWorkspaceStore();
     }
@@ -75,11 +82,26 @@ export class WorkspaceState {
      * @returns
      */
     async changeEditor(id: number) {
-        if (id >= this._vsStore.length) {
+        if (id < 0 || id >= this.vsStore.length) {
+            console.log("no access out of scope");
             return;
         }
-        const doc = await vscode.workspace.openTextDocument(this._vsStore[id]);
-        await vscode.window.showTextDocument(doc);
+        try {
+            const doc = await vscode.workspace.openTextDocument(
+                this.vsStore[id]
+            );
+            await vscode.window.showTextDocument(doc);
+        } catch (err) {
+            console.error(
+                "🪵 [workspaceState.ts:98] ~ token ~ \x1b[0;32me\x1b[0m = ",
+                err
+            );
+            vscode.window.showErrorMessage(
+                err instanceof Error
+                    ? err.message
+                    : `cannot open file ${this.vsStore[id]}`
+            );
+        }
         return;
     }