Linnworks stopped downloading orders from Magento

Hi guys. Earlier this morning Linnworks order management software stopped downloading the orders from Magento for no apparent reason. I have not made any changes to the site etc, it appears to have happened spontaneously. I have tried clearing the caches, re-indexing and restarting the server but to no avail. I am now getting the following error messages in the Linnworks log.

Skipping pending orders from (website). Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'eq' in 'where clause'

Skipping processed orders from (website). Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'eq' in 'where clause'

Skipping pending orders from (website). Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'eq' in 'where clause'



Could someone please point me in the right direction to try to fix this? Thanks for any help.