Found error while upgrade to

I found a problem while I upgrade OJS. The error code shown below.

  • A database error has occurred: SQLSTATE[42S21]: Column already exists: 1060 Duplicate column name ‘email_id’ (SQL: ALTER TABLE email_templates_data ADD email_id BIGINT)


Hi @Natthakorn_Ruengdit,

Is this the first attempt to upgrade, or was there an interrupted attempt, and you tried again without restoring the database backup?

Also, are you upgrading from which OJS version?