[CentOS] Strange apache problem

Hello list.

I have an local webserver running latest centos 7 release. The website 
is connected to mssql database on other windows server and worked fine 
since months until today.

After update last centos packages, greek characters from sql request 
look like question marks ?????

The config files are the same and the connection use utf8 set.

Any ideas?


Thank you for advance, Nikos.