Rudder

I have postgresql 11, and during update, i have the following error

  Mise à jour  : 1398866025:rudder-reports-5.0.10.rc1.git201905030536-1.EL.7.noarch                                                                                                                                                     10/22 
Unit postgresql.service could not be found.
INFO: Initializing PostgreSQL ...Data directory is not empty!

 Done
Failed to start postgresql.service: Unit not found.
INFO: Setting PostgreSQL as a boot service...Failed to execute operation: No such file or directory
 Done
INFO: Waiting for PostgreSQL to be up... Done