Thanks for the link Gary, but Im still a little confused on what I need to do exactly ?
Do I follow the the trouble shooting link or the section about updating manually ? Either way both instances talk about backing up your files first and disabling plugins, neither I can do as I have no access to the site ?
I installed a plug in that would show a ‘site under maintenance’ page whilst I was working on it ?
If you could please clarify exactly what steps I should be following before I start removing any files, thanks ??