Topic: Updating to SOGO 4.0
==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.8
- Linux/BSD distribution name and version: CentOS 7.5
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): PGSQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? yes, 2.4.9
====
I am upgrading to sogo 4.0 version and got this error after running script:
ERROR: column "c_hascertificate" of relation "sogo_quick_contact" already exists
I followed this link : https://docs.iredmail.org/upgrade.sogo.3.to.4.html
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