I have uploaded a screen shot - see below

Hi Samantha

Thank you for your screenshot.

I am going to see if we have any issue with this particular error you have received as I have not seen this before, once I have an update I will send a follow up post.

I'm getting an "Unexpected Problem: -30000" when trying to modify an existing invoice.  This happens on a re-cached browser, or on the QBO app.  

I went ahead and checked our records, Qwik. I haven't seen any open cases.

It can be caused by some browser hiccups. You can follow EdwardR's steps to isolate the issue.

Although, if you're still encountering the same issue after trying the steps, I'd suggest reaching out to our customer care support through phone, chat, or social media like Facebook or Twitter.

Here's how to reach out through phone or chat:

1. Click Help inside QuickBooks Online.
2. Select Contact Us.
3. Enter "Unexpected Problem: -30000 when editing an invoice" in the description field, then click Let's talk.
4. Select either Start messaging or Get a callback. 

Once it's fixed and your customer pays, you can go ahead and record invoice payments.

The Community is open 24/7 to help you. Please feel free to let us know if you have other concerns.

Hello QB savvy,

when I'm trying to create a sub accounts in my chart of accounts it show this massage.

Note that that was 4 level of sub accounts of chart of ac.

Hi nuruzaman, thanks for joining this thread - do both the parent and subaccount have the same account type? 🧐