I recently returned to my website after a while, and wanted to update it. I successfully updated it to 5.4.2.2 after doing it manually. I then tried to continue the updates and have tried versions 5.5.0 up to 5.5.2.1 but the same thing keeps happening:

After moving the downloaded update folder to updates folder, I went back to the dashboard and selected the option to update to the version i downloaded. I get the following message:

'An Unexpected Error occurred while upgrading: mysql error: [1048: Column 'btDisplayOrder' cannot be null] in EXECUTE("INSERT INTO BlockTypes(btID,btHandle,btName,btDescription,btActiveWhenAdded,btCopyWhenPropagate,btIncludeAll,btIsInternal,btInterfaceWidth,btInterfaceHeight,pkgID,btDisplayOrder) VALUES (NULL,'core_scrapbook_display','Scrapbook Display (Core)','Proxy block for blocks pasted through the scrapbook.',1,0,0,1,'400','400',0,NULL)")'

When I return to my website and log in, the interface has updated to the new interface but i cannot access the Dashboard and get the 'Checking For Updates' loading circle but nothing happens.

I've tried to fix the problem by following the answer on this thread:
http://www.concrete5.org/community/forums/installation/checking-for...

But it didnt work, the loading circle disappears but so do the tabs on the top bar.

Ive been trying to fix this for 2 days now...
Any advice?