D4Science Infrastructure

Today, several users have been registered to the D4Science Portal but for several time some of them weren't correctly registered on our ldap.
When one of them tried to access to rstudio server we had seen the following exception:

11:36:12.836 [catalina-exec-8] INFO  RequestAccounting: REQUEST START ON RConnector:DataAnalysis(/gcube/service/connect) CALLED FROM michel.bertignac@134.246.86.117 IN SCOPE /d4science.research-infrastructures.eu/D4Research/DRuMFISH 
11:36:12.867 [catalina-exec-8] ERROR ConfigFileWriter: error writing config file
java.io.FileNotFoundException: /home/michel.bertignac/userconfig.csv (No such file or directory)

11:51:19.942 [catalina-exec-5] INFO  RequestAccounting: REQUEST START ON RConnector:DataAnalysis(/gcube/service/connect) CALLED FROM michel.bertignac@134.246.86.117 IN SCOPE /d4science.research-infrastructures.eu/D4Research/DRuMFISH 
11:51:19.970 [catalina-exec-5] ERROR ConfigFileWriter: error writing config file
java.io.FileNotFoundException: /home/michel.bertignac/userconfig.csv (No such file or directory)

After a manual sinchronization, the problem has been solved.
It's needed to understand why the synchronization between portal and ldap wasn't worked