QB Issue Resolution:

It sounds like the primary interop assembly (The connection between QuickBooks and Office) did not install.  It’s rare, but most often it happens if QuickBooks is installed before MSOffice.  Look for C:Program Files (x86)IntuitStatement Writer 2017vstor.exe and run it on the affected computer.

 

* If you are asked to repair or remove the primary interop assembly, remove it, then run the vstor.exe program again to reinstall it.

 

 

If you don’t have the vstor file, I recommend a clean uninstall of QuickBooks and then a reinstall.

 

 

I hope this helps. There is a detailed article that you can access as well, but try the two options I suggested first. I have had great success with them in the past.

Resolution for Issue 'QuickBooks Pro 2015 & Outlook 2016 (Office 365)' available: Yes (Solved).
Source: Intuit Community forum.

QuickBooks Pro 2015 & Outlook 2016 (Office 365): this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for Outlook 2016
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Error Recovery for Outlook 2016 [Canada]
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