We've tried moving an existing, live Craft site to a new host (where we currently just have http access via an IP). We simply copied all files (all 'craft' files, the index.php file and our related assets) across to the new host and updated permissions where necessary. We then moved across the DB and updated config settings to connect to it.
However, something is wrong. On the front end we get this message:
Our site is temporarily unavailable. Please try again later.
And when trying to access the CP, all we get is this message:
Oops! Craft does not support backtracking to this version. Please upload Craft 2670 or later.
No idea what this means. As well, the version that the message references (2670) is the version we have installed on the live site and are trying to migrate across. Any help would be much appreciated - and I can share the dev URL non-publicly if needed.