Have you updated the BR*Tools?
The instant client used by SAP should be the one present in the client directory which is /oracle/client/11x_64. You should run the genezi -v from there.
The command you have run is most likely using the one (genezi) from the ORACLE_HOME/bin directory.
cd /oracle/client/11x_64/instantclient
The instantclient here should be a symbolic link to the correct instant client directory and if you have the upgraded the database to 11.2.0.4 it should be instantclient_11204
Execute the genezi -v from here to get the correct client version.
./genezi -v
Also check if the parameters are set as recommended.
The environment variable pointing to the Oracle Instant Client should be set for the <SID>adm user.
Run the statistics collection as ora<SID>
brconnect -c -u / -f stats -t all –f collect -p 4