Good Afternoon, @stashenko12.
Let's work together and get this problem handled. Doing a few basic troubleshooting steps can help resolve this problem.
Using a private browser or incognito window can eliminate glitches or errors that are occurring in the system. Here's how to depending on your browser:
- Google Chrome: Ctrl + Shift + N
- Internet Explorer/Firefox: Ctrl + Shift + P
- Safari: Command + Shift + N
If this works, then go back to your regular session and clear your browser's history.
For future reference, check out this link about recording invoice payments in QuickBooks Online (QBO).
These steps should do the trick of removing this error message. Let me know if you have any other questions or concerns. We've got you covered. Take care!