Hi pprtransport-gma,
We have seen this error come up before and in most cases it can be a result of potential browser or app issues creating display errors. If you are currently using QuickBooks Online through a web browser I would encourage you to click here to try the troubleshoot options, including different browsers before trying again.
If you are using our mobile app version, please make sure you delete and reinstall the mobile app as this can help refresh your current version which may have inherent bugs or glitches.
Of course if you have already tried these options above I would kindly as you get in touch with our friendly support team by clicking here so we can take a look as this may need to be escalated.
Let me know how you go,
-Steven