Failed license retrieve and insert

[yulian]

ERROR: PleskFatalException: StatInfo->getProductVersion failed:devices number <= 0

Additionally, an exception has occurred while trying to report this errorleskFatalException
StatInfo->getProductVersion failed: devices number <= 0(functions.php:76)

plesk 12.5.30
centos 7

i cant retrieve or change license key, need help

status :
i bought new license to change old one, but i getting error in retrieve and insert license code
thanks

 

[IgorG]

Check that you have mounted /sys/kernel/debug partition.
For fixing this issue just unmount it.

 

[yulian]

yes it's mounted, i umount it but still give same error
thanks Igor

 

[IgorG]

Try to restart psa service after unmounting.

 

[yulian]

done restarting,
still producing same error sir

 

[IgorG]

What sort of output command:

# df -h

?

 

[yulian]

Filesystem Size Used Avail Use% Mounted on
/dev/vda1 59G 9.0G 47G 17% /
devtmpfs 2.0G 0 2.0G 0% /dev
tmpfs 2.0G 0 2.0G 0% /dev/shm
tmpfs 2.0G 193M 1.8G 10% /run
tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup

IgorG , i changed default ssh port, is that make a problem ?

 

[IgorG]

is that make a problem ?

No.
Check this thread too - http://talk.plesk.com/threads/pleskfatalexception.103092/

 

[yulian]

grep disable_f /usr/local/psa/admin/conf/php.ini

give me blank in ssh, nothing come out sir

 

[yulian]

still not solved, any help welcome