Hello! I see you're encountering an error message in the Hearo app on your iPhone that says, "You don't have permission to access." I'd like to help you get this sorted out.

To start, could you help me understand a bit more about when this error occurs? For example:
- Are you trying to access a specific feature, page, or content inside the Hearo app when this message appears?
- Did this issue start happening suddenly, or after a recent update or change?
- Are you logged into your Hearo account properly, or is it showing this before you log in?
- Is your internet connection stable, or have you been using a VPN or a restricted network lately?

While I wait for your details, here are some initial steps you can try to fix this permission issue on your iPhone with iOS 18.6:

1. Restart the Hearo app: Close it fully by swiping it away from the app switcher, then reopen it.

2. Sign out and sign back in: Sometimes your session might have expired or permission tokens need refreshing.

3. Check for app updates: Go to the App Store and confirm Hearo is updated to the latest version.

4. Network check: If you’re on Wi-Fi, try switching to cellular data or vice versa. Also, disable any VPN or proxy services temporarily if you use them.

5. Clear app cache (if possible): While iOS doesn't have a direct cache clear option, deleting and reinstalling the app can serve a similar purpose.

6. Restart your iPhone: Simple but often effective.

If after these steps the problem persists, the issue might be on the server or account permissions side that need Hearo’s support intervention.

Would you please let me know what you have tried so far and any answers to the questions above? That will help me guide you further more precisely!