Cannot access ACP after upgrading to 4.7

[B24]

After upgrading to 4.7, I'm getting the following when trying to access my admin. 

[[Template core/admin/global/globalTemplate is throwing an error. This theme may be out of date. Run the support tool in the AdminCP to restore the default theme.]]

Tried recovery mode, doesn't work. Tried re-uploading all files and upgrading again. No upgrade available. Anything else I can try?

[Jim M]

Regarding recovery mode, were the specific instructions and sequence followed? Unfortunately, it needs to be done in that particular sequence to work.

If so, please provide us access as outlined below:

We would need to look further into this for you, however the access details on file appear to be incorrect or missing. Could you please update these details by visiting your client area, selecting the relevant purchase, then clicking "Review/Update Access Information" under the "Stored Access Information" section. 

We look forward to further assisting you. 

 

[B24]

Couldn't get it to work. I've updated the stored access section. I'm going to need help with it.

Thank you.

[Marc]

I have created a ticket for you on this, and someone will be in contact as soon as possible.