While accessing the Plesk control panel, you may get an error message as follows:
StatInfo->getProductVersion failed: Plesk version file doesn’t exist or empty
This error is mostly caused due to a failed Plesk upgrade OR by removing/installing some Plesk modules.
To fix the issue do the following:
First, check the Plesk version installed on the server
rpm -qi psa
Note the version and release values:
Version : 11.5.30 Vendor: Parallels Release : cos6.build115130819.13 Build Date: Sun 18 Aug 2013
Now, check the OS installed on the server:
cat /etc/redhat-release 11.5.30 CentOS 6.4 115130819.13
After creating this line, add that line to the top of the file /usr/local/psa/version.
If still not working Connect to Plesk mysql server and run this query :
mysql> select * from psa.misc where param='version';
Now restart the plesk and the issue will be fixed.