Let's make sure you'll be able to fix the error so you can save your logo in QuickBooks, Nic1cola.
This happens when your browser is full of frequently accessed page resources that may have been the cause of some unusual responses. You can log in to your account using a private window (incognito). I've provided the shortcut keys below:
- Press Ctrl + Shift + N (Google Chrome).
- Ctrl + Shift + P (Firefox).
- Control + Option + P (Safari).
- Press Ctrl + Shift + N (Microsoft Edge).
Once you're able to sign in, double-check if you're still getting the error. If not, return to your default browser and clear the cache to speed up the loading process. Every so often the cache becomes overwhelmed with older data which can potentially cause viewing and performance issues. Clearing it will refresh the system, and you'll be able to work with a clean slate. However, if the issue persists, try using other supported browsers.
Furthermore, find out how much income tax and national insurance you need to pay at the end of each tax year. Learn from this article for further details: Self Assessment For Income Tax Checklist For QuickBooks Self-Employed.
Don't hesitate to keep in touch if you have any questions about customizing the sales form. I'll always be right here to help you.