Hello Jeremy_T,

Just like EricST, there are also other customers who have resolved the template issue by performing basic troubleshooting in QuickBooks Online.

The cache can get jammed up with older data from time-to-time, potentially causing errors in QuickBooks Online. Please clear it by following the steps below

• Google Chrome: press Ctrl + Shift + N  
• Mozilla Firefox: press Ctrl + Shift + P
• Safari: press Command + Shift + N

If the Unexpected token error is no longer showing, you can go back to regular browsing and clear the browser's cache.

You can also use different browser that works best with QBO such as Google Chrome, Mozilla Firefox, Microsoft Edge and Safari 11 or newer.

If you have any questions, please let me know. I'll be here and ready to help anytime. Have a good one.