Update instagram.mdx

Add App Roles instructions

Author: candidexmedia

pages/providers/instagram.mdx

@@ -39,7 +39,7 @@ Then select business
 ### Step 4
 Add all your details and click Create App
 
-![CleanShot 2024-09-24 at 13 45 54](https://github.com/user-attachments/assets/f0c03825-0f9b-4467-94a4-ab8cf6ed7e1d)
+![Create an app details page](https://github.com/user-attachments/assets/f0c03825-0f9b-4467-94a4-ab8cf6ed7e1d)
 
 </Steps>
 
@@ -95,7 +95,7 @@ If you want to connect directly to your Instagram account without having to use
 
 <Steps>
 ### Set up Instagram
-![Instagram](/images/providers/instagram-standalone/instagram-standalone-001.png)
+!["Add products to your app" section of app creation](/images/providers/instagram-standalone/instagram-standalone-001.png)
 
 Set up Instagram.
 
@@ -123,3 +123,33 @@ INSTAGRAM_APP_SECRET="app secret"
 
 Go to the Postiz web interface, and click on the "Add Channel" button. Select "Instagram (Standalone)" from the list of available channels. You should be redirected to the Instagram login screen to authorize the application.
 </Steps>
+
+## Adding App Roles
+
+If you're having trouble connecting to your Instagram accounts, adding them as App Roles may help.
+
+<Steps>
+### Go to the App Roles page
+
+![Facebook App developpers dashboard](https://i.imgur.com/XPDtMvg.png)
+
+### Add a role
+
+Click on "Add People"
+
+![App Roles page](https://i.imgur.com/ZdIDGYf.png)
+
+### Add an Instagram Tester
+
+Select the "Instagram Tester" option, and type in the handles of all the Instagram accounts you'd like to connect to. Then, click "Add".
+
+![Add people window](https://i.imgur.com/VqF4xDJ.png)
+
+### Accept the invitations
+
+Go to your Instagram account, and accept the tester invitation in the [Apps and Websites section of the profile settings](https://www.instagram.com/accounts/manage_access/).
+
+![Apps and Websites section of the profile settings](https://i.imgur.com/zODkmtD.png)
+
+</Steps>
+