Upgrading from ojs 2.4.8 to 3.2.0

Can you help me to solve this problem I am trying to upgrade versions of ojs but when i execute the comand php tools/upgrade.php upgrade I got this error: DB Error: Unknown column ‘assoc_type’ in ‘where clause’ Query: UPDATE email_templates SET assoc_type = 530 WHERE assoc_type = ‘526’

Before anything I want to let you know that I backup the database, the files and the ojs directory I follow this video Upgrading to OJS 3 - YouTube to restore the installation but I got that error when I want to upgrade versions can anyone knows how to solve it

Hi @Carlos_Alberto_Rivad,

See e.g.: Upgrade OJS 2.4.x -> 3.2.0-1 problems :(

Alec Smecher
Public Knowledge Project Team