Symptoms
The following message printed on upgrade attempt to Parallels Business Automation - Standard 3.3.3 version:
Server hostname check [ OK ]
Database connection check [ OK ]
Operating System check [ OK ]
Plesk Objects Intergrity check [FAILED]
Upgrade integrity check [ OK ]
Applications data integrity check [ OK ]
Resolution
Please download precheck_plesk_upgrade_standalone333.pl script from http://download.pa.parallels.com/pbas/3.3/scripts/precheck_plesk_upgrade_standalone333.pl and execute the script until all reported issues are solved:# wget http://download.pa.parallels.com/pbas/3.3/scripts/precheck_plesk_upgrade_standalone333.pl
# perl precheck_plesk_upgrade_standalone333.pl