Issue Plesk 11.0.9 to Onyx: "datatree" driver (for Horde_Perms not found).

[AWSolutions]

After upgrading on a centos 6 box to Onyx, we get this on our webmails:

A fatal error has occurred
"datatree" driver (for Horde_Perms not found).
Details have been logged for the administrator.

This is in the log file (/var/log/psa-horde/psa-horde.log)
2017-03-31T12:11:49-04:00 EMERG: HORDE "datatree" driver (for Horde_Perms not found). [pid 19676 on line 85 of "/usr/share/psa-pear/pear/php/Horde/Core/Factory/Base.php"]

Any help would be much appreciated!

 

[WebHostingAce]

This may not be the perfect solution.

Have you tried to uninstall and install Horde Webmail via "updates and upgrades"?

 

[IgorG]

Reinstall it with

# plesk installer --select-product-id plesk --select-release-current --remove-component horde
# plesk installer --select-product-id plesk --select-release-current --install-component horde