While working with your QuickBooks, you may get Crash: Com error when you open or email invoices, other transactions, or reports.

Crash: Com Error

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This error can be resolved by using one or more of the following solutions.
  IMPORTANT: On January 17th, Microsoft released a patch for Office that will, in many instances, remedy the COM error that has been seen for some time. Please update Office to the latest release. You may need to change to the Monthly Channel to make sure you have the most recent release. For more information, refer to this Microsoft article.

If you continue to see COM errors after updating to the latest release, perform these solutions in the order listed and re-try the process that prompted the error after each of them. If error still occurs, proceed to the next recommended solution.