1054 Unknown column 'sstatus' in 'field list' SQL=

Hello,
I asked some presales question and in the session Alex told me that there is no problem to upgrade 2.1 with 2.5, But now I got the first error:
1054 Unknown column 'sstatus' in 'field list' SQL=select `sstatus` from `#__vquiz_configuration`
How can I solve it?

Hello John,
Please share your backend & FTP login credentials via Contact us form, We'll look into it.

Hello Daniel,
thanks for your answer. I had a support issue and because of this all my sites and my server gets hacked. Now I have a new server and I have to build up my sites by hand again. This is a lot of work and the site diejagd.com has over 3000 Articles. Also the site is with AdminTool, .htacess and from the server secured, therefore it is not possible to access from India. But I can send you an Akeeba backup from the site. Please let me know how I can send you a 103Mb zip.
Thanks
John

Hello,
That's fine, You can find our Email ID at the top left corner of this page.