I don't see how setting my default browser to IE11 will fix this. These scripts errors have come and gone for years and you can see it by searching other threads. This happens because QB insists on pulling in script files for advertising even though you've already paid for a desktop copy. That in itself isn't the cause, but I'm sure QB developers know what the cause is. Seems one script error will pop up, they'll fix it, and a new come appears a few days afterwards when they decide to update their script files.