Dovecot service on a Plesk server is down: Module is for different ABI version

Symptoms

•  Dovecot service is down with the error below:

  doveconf: Error: Couldn't load plugin /usr/libexec/dovecot/modules/settings/libmanagesieve_login_settings.so: Module is for different ABI version 2.3.ABIv7(2.3.7.2) (we have 2.3.ABIv13(2.3.13))
  doveconf: Error: Couldn't load plugin /usr/libexec/dovecot/modules/settings/libmanagesieve_settings.so: Module is for different ABI version 2.3.ABIv7(2.3.7.2) (we have 2.3.ABIv13(2.3.13))
  doveconf: Error: Couldn't load plugin /usr/libexec/dovecot/modules/settings/libpigeonhole_settings.so: Module is for different ABI version 2.3.ABIv7(2.3.7.2) (we have 2.3.ABIv13(2.3.13))

Cause

Corrupted Dovecot installation.

Resolution

1. Log into Plesk.
2. Go to Tools and settings > Updates screen, switch Dovecot to Courier-IMAP and after that switch back to Dovecot.