Unknown column 'GroupingID' in 'order clause'
I sucessfully added 15 products with only the occassional glitch, but now I can't add any products without getting the error "Unknown column 'GroupingID' in 'order clause'" which screws up the admin area, and sometimes the site iteslf.
All the products I'm setting up have Advanced Options and Simple Options.
Every time I enter the fourth Advanced Item in a new product it kills the product results area in admin (StoreManager) on the page where the product resides.
The page becomes white with no formatting, the products are there though, and the error message is at the bottom.
It also does the same thing on the actual web site - losing the formatting that is.
Having battled with this for several hours I am at a loss how to resolve this. I've deleted the problem options - created new ones - deleted the whole product - created a new ones with different names ...
I've looked in the database and can't see any obvious problems there.
Can you assist me please?