Let's resend this email invitation to your contractors, @rcaldera9.

You can resend them the email invitation by going to their profile and clicking on the Send a reminder button. 

If you don't have this option from your contractor's profile, then I suggest clearing your browser's cache. QuickBooks Online uses browser cache and cookies to run faster. There are times that this is causing the error when trying to resend this email invitation.

But first, try using a private browser or an incognito window when trying to reconcile your account. If you no longer have the error, then you can clear the cache in the one that you're currently using if it works. Here’s how:

• For Chrome, press Ctrl + Shift + N.
• For Microsoft Edge or Firefox, press Ctrl + Shift + P.
• For Safari, hold down Command + Shift + N.
•  

If it works, here's how to clear cache and cookies to fix issues when using QuickBooks Online. Restart your browser right after. You can also try using other supported browsers (Firefox, Google Chrome, Safari, Microsoft Edge) if the steps above didn’t work.

Here's everything that you need to know about adding or editing contractors in QuickBooks Online: Add, edit and inactivate contractors.

Let me know if you have other concerns or follow-up inquiries about managing contractors in QBO. I'm just around to help. Take care always.