Hello,
It could be a folder permission issue on the Tomcat\temp\oegraphs folder or other folders specified in your configuration.
Please check your Tomcat log files. They may help pinpoint the folder.
Look for a line like …
[main] INFO e.j.o.config.EnvironmentConfig - Using X:\Tomcat\temp\oegraphs as graph directory
Thank you for your interest in SAGES,
Regards,
The SAGES Team.
{"message":"C:\\tools\\Tomcat 7.0\\temp\\oegraphs\\user_2016févr.25_09_50_07_273_2974 (Le fichier spécifié est introuvable)","success":false}
I apologize for derangement.
I put in file attached 2 screenshots showing errors.