Hi there! I understand you're encountering an "internal_error" when trying to log into your accounts, but it seems your third account is working fine. Let's troubleshoot this together.

### Step 1: Log Out of All Accounts
First, let's try to ensure that any potential account conflicts are resolved. Here's what to do:
1. Log out of all accounts on your device.
2. Once logged out, clear the app's cache and data if you're using a specific app for login. To do this:
- Go to Settings on your Android device.
- Tap on Apps or Application Manager.
- Find the app you're using for login (like Google Play Services or the specific account app).
- Tap on Storage, and then select Clear Cache and Clear Data.

### Step 2: Log in Again
After you've logged out and cleared the cache:
1. Open the app or website again.
2. Try logging in with your first and second accounts one by one.

### If the Issue Persists
If you're still facing issues after trying these steps, it might be related to specific settings or permissions. Here's what you can check:
- Make sure that your Internet connection is stable.
- If you're using a VPN or any security apps, try disabling them temporarily as they might interfere with the login process.
- Ensure that your Android operating system and any apps related to the login are fully updated.

### Further Help
If you're continuing to encounter the internal error, it may be useful to check some specific developer discussions around this error on platforms like GitHub. There are several cases where this error has occurred due to issues with app permissions or account settings. For instance, some users found success in registering their apps properly in the console or ensuring they took care of specific settings 1 2.

Let me know how these steps work for you! Are you satisfied with the solution I provided?