Is anyone else having trouble posting bank deposits in qbo?

Welcome to QuickBooks Community, @jamie-gw-corp-co.

The error may appear when there's an issue with the browser. This is the reason why you're getting this error message when creating your bank deposit.

The best thing that we can do is to perform some basic troubleshooting steps. This way, you can get back to your business. 

First, use a private browser to access your account in QuickBooks. It is also known as InPrivate in Internet Explorer and Incognito mode in Google Chrome. This browser mode doesn't record the browsing activity on your local device. You can access this by pressing the following keys:  

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox).
• Control + Option + P (Safari).

If you're able to create your deposit, then let's clear the cache in your web browser or try using a different supported browser. It could be a temporary issue with QuickBooks and the current browser that you use.

For more info in regards to creating bank deposits in QuickBooks, check out this article: Why do I add need to use the Bank Deposit feature in QuickBooks Online?

If there's anything else I can do for you, please let me know. I'll be around to help you. Have a beautiful day!