Failed getting quota: ... System error 38:

[sakshale@]

One domain, for one client, gets the following error...
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ERROR
Up LevelUp Level
Unable to check SiteAppPackage requires: usermng: Failed getting quota: Function not implemented System error 38: Function not implemented
0: /usr/local/psa/admin/plib/class.DomainControlForm.php:994 psaerror(string "Unable to check SiteAppPackage requires: usermng: Failed getting quota: Function not implemented System error 38: Function not implemented")
1: /usr/local/psa/admin/plib/class.DomainControlForm.php:316 domaincontrolform->_detect_site_builder(string "vrt_hst", boolean true, boolean true, string "10", string "DOMAINNAME", string "EMAILADDRESS", string "0")
2: /usr/local/psa/admin/htdocs/domains/dom_ctrl.php3:140 domaincontrolform->assign(object of type bsdomain)
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Plesk 7.5.2
Fedora Core 1

 

[sakshale@]

Sigh... This has expanded to a dozen domains. The domains are fully functional from the user perspective, but Plesk is completely broken.

I thinking of restoring the database to the backup from two nights ago, but have no idea what the impact of that would be.

Another alternative would be to try updating to Plesk 7.5.3, with the hope that would replace the module that is broken... but am afraid that would prevent my running a restore if it doesn't work.

Any recommendations?