Let me help fix the error you've received, @gabriela4.
Before we start, may I know where did you get the error? Any additional information could help us identify the cause of the issue.
In the meantime, let's try logging in to your QuickBooks Online (QBO) account using a private browser. This way, we can check if it's a browser data issue.
Here's how:
Press Ctrl + Shift + N on your keyboard for Google Chrome and Mozilla Firefox.
Please know that you can always get back to this post if you have additional questions with QuickBooks. I'll be around to provide further assistance. Have a good one.
Please I Want Purchase Quickbooks Desktop Enterprise And I Have Issue Code 500 Internal And Clear browsing data Google Chrome Still I Cant Pay Could You Help Me
The HyperText Transfer Protocol (HTTP) 500 Internal Server Error response code indicates that the server encountered an unexpected condition that prevented it from fulfilling the request. Since you’ve already cleared the cache, contacting our Customer Care team is the option so you can purchase Quickbooks Desktop Enterprise successfully.
You can try to visit this website here to get their contact information and learn more about the product. They are available from Monday to Friday starting 5:00 AM until 6:00 PM PST or use this contact feature to reach out to them: