This isn't the kind of issue we'd like you to experience when editing your account, Jandy. I'm here to assist you in resolving this error.

I've replicated your goal and was able to modify the bank's name in the Chart of Accounts window. Since you encountered an error, I'd recommend running the Verify and Rebuild Data utility. The tool scans data issues within the company file and self-resolves them.

Here's how to verify data:

1. Open the company file.
2. Click the File menu.
3. Select Utilities.
4. Choose Verify Data.

Here's how to rebuild the data:

1. Open the company file.
2. Click the File menu.
3. Select Utilities.
4. Choose Rebuild Data.

For more details, please see this article: Verify and Rebuild Data in QuickBooks Desktop.

Additionally, I've included an article that'll help categorize and manage your accounts in QuickBooks Desktop. This ensures you're able to break down how much money you have (or owe): Learn About the Chart of Accounts.

I'm only a few clicks away if you need assistance with your other QuickBooks tasks, Jandy. It's always my pleasure to help you out again.