Hi there bev-vpmc-ca,
Thanks for reaching out about creating transactions. QuickBooks Online is a great tool able to assist you in keeping track of sales and expenses so you can see the profitability of your company. I can provide some steps to help errors like the one you're seeing.
One possible cause of an error like the one you're experiencing while creating transactions would be browsing data. These temporary files can accumulate and cause errors like buttons not working in any cloud-based software like QuickBooks Online. You can resolve errors caused by browsing data:
If you have any other questions or need further assistance, feel free to reach out here.