HELP: Botched domain transfer

Okay so here's the story old elgg install worked. Tried to transfer to new domain name using the instructions given be elgg docs. I backed up the data store directory the MySQL table and the mod folder, I then restored on new domain.

On new domain, I updated the engine php mysql connection information with access details. Then tried the upgrade. The process didn't work.

Can anyone help explain what I might be doing wrong?