Upgrading from 4.1.11.1 To Latest Failed

[H5K]

Hi guys,

Been stuck on this outdated version of IPS for a while because our host kept saying they'd upgrade PHP but never did.

Transferred the site over to the a new server host, got everything running, then tried to update it via the admin CP. Unfortunately I got this weird error during the upgrade and now I get it every time I try to log into the CP.

I have a support ticket open but they are taking a really long time (we don't have priority support). I figured it was worth a shot posting here, maybe someone could point me in the right direction.

 

Thanks

[Adlago]

Download the latest version from your client area
Uploads all files
Remove all files from datastore directory
Start upgrade ...   your domain/admin/upgrade

[Joel R]

Disable all third-party applications and plugins, especially anything related to an Auto Welcome.  

Then attempt to upgrade.