Session errors in phpMyAdmin?

Question

linux

Hi all!
Installed phpMyAdmin (CentOS 6.8, BitrixVM, Apache+Nginx)

These are the errors in the phpMyAdmin interface

Warning in ./libraries/session.inc.php#105
 session_start(): open(/tmp/php_sessions/www/sess_hh83pg22rkp1v4c0dq53mc7hh0fhmonma, O_RDWR) failed: No such file or directory (2)

Backtrace

./libraries/session.inc.php#105: session_start()
./libraries/common.inc.php#350: require(./libraries/session.inc.php)
./index.php#12: require_once(./libraries/common.inc.php)

tried this:
chown nginx:nginx /var/lib/php/session
errors remained

Created a folder /tmp/php_sessions/www/
everything worked, except

- The phpMyAdmin configuration storage is not completely configured, some extended features have been deactivated. Find out why. Or alternately go to 'Operations' tab of any database to set it up there.


- You have enabled mbstring.func_overload in your PHP configuration. This option is incompatible with phpMyAdmin and might cause some data to be corrupted!