Neatline not letting me add a new exhibition or edit existing exhibitions?

I am getting the following error message and I can’t seem to be able to fix it. I am running Omeka 2.5 and Neatline 2.5.2
Could someone help me?

Omeka has encountered an error
Zend_Db_Statement_Mysqli_Exception
Mysqli prepare error: Unknown column ‘zoom_levels’ in ‘field list’

exception ‘Zend_Db_Statement_Mysqli_Exception’ with message ‘Mysqli prepare error: Unknown column ‘zoom_levels’ in ‘field list’’ in /var/www/html/omeka_medieval/application/libraries/Zend/Db/Statement/Mysqli.php:77
Stack trace:
#0 /var/www/html/omeka_medieval/application/libraries/Zend/Db/Statement.php(115): Zend_Db_Statement_Mysqli->_prepare(‘INSERT INTO om...') #1 /var/www/html/omeka_medieval/application/libraries/Zend/Db/Adapter/Mysqli.php(388): Zend_Db_Statement->__construct(Object(Zend_Db_Adapter_Mysqli), 'INSERT INTOom…’)
#2 /var/www/html/omeka_medieval/application/libraries/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Adapter_Mysqli->prepare(‘INSERT INTO om...') #3 /var/www/html/omeka_medieval/plugins/Neatline/models/abstract/Neatline_Row_Abstract.php(170): Zend_Db_Adapter_Abstract->query('INSERT INTOom…’, Array)
#4 /var/www/html/omeka_medieval/plugins/Neatline/models/abstract/Neatline_Row_Abstract.php(111): Neatline_Row_Abstract->insertOrUpdate(Array)
#5 /var/www/html/omeka_medieval/plugins/Neatline/models/abstract/Neatline_Row_Expandable.php(75): Neatline_Row_Abstract->save(false)
#6 /var/www/html/omeka_medieval/plugins/Neatline/models/NeatlineExhibit.php(59): Neatline_Row_Expandable->save()
#7 /var/www/html/omeka_medieval/plugins/Neatline/controllers/ExhibitsController.php(95): NeatlineExhibit->saveForm(Array)
#8 /var/www/html/omeka_medieval/application/libraries/Zend/Controller/Action.php(516): Neatline_ExhibitsController->addAction()
#9 /var/www/html/omeka_medieval/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch(‘addAction’)
#10 /var/www/html/omeka_medieval/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#11 /var/www/html/omeka_medieval/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#12 /var/www/html/omeka_medieval/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#13 /var/www/html/omeka_medieval/application/libraries/Omeka/Application.php(77): Zend_Application->run()
#14 /var/www/html/omeka_medieval/admin/index.php(28): Omeka_Application->run()
#15 {main}

Hi there.

I have run into the same problem.

any suggestions in how to fix this?

thanks.