Need Upgrade Help from V8.5.4 to V9.1.3

Our current site is hosted at Dreamhost. The current C5 Version is V8.5.4 running on PHP v7.4.

It looks like the Download/Update function in C5 failed. I attempted to update to 8.5.12, and then update the add-ons. I got an error screen when that update happened, and now when I attempt to log in the following error appears:

Whoops \ Exception \ ErrorException (E_WARNING)
include(/home/dh_ngqsri/wearethepractitioners.com/application/elements/header_required.php): failed to open stream: No such file or directory

The site is running - I just can’t get into the back end now. I am also concerned that several of the expansions we had for the site are no longer compatible with the latest versions of C5.

SCOPE of WORK:

  1. Determine cause and correct.
  2. Update C5 to version 9.1.3 - Coordinate the PHP update to PHP 8.1 with the C5 update.

Email is the best way to make contact. Use david_schneider@dksco1.com.

Hi,
Hope all is well!

I would be glad to assist you.

To discuss further in detail kindly reach me at lauren@cisinlabs.com or Skype me:live:lauren_8606

Looking forward to your response.

Thanks,
Lauren W.

David, that’s due to recent update you have done.
Can be fixed If you are still interested

Looking forward to your revert on email sent.

Have a nice day