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Using v4.0. Got the above error numerous times while working with a category search that returned 187 product records. With 10 records displayed per page there were 19 pages of results. The error occurs as the pages are browsed from the index links at the bottom. After clicking to a few pages the error appears and the links quit working. Any ideas as to what could be causing this?

Same problem here on this page when changing the logo position drop down,

the particular option is global assigned as a link to 70 products and only seems to happen when I have more than 5 options in the dropdown.

did you get any fix merchantman