Java errors in Comsol 43 with matlab 2011b

When I use matlab2011b to run M-file generated by comsol43 in Linux system, the following massages appear:

"Java exception occurred:
java.lang.RuntimeException: Could not start the server.
at com.comsol.model.clientserver.ClientManagerImpl.launchServer(Unknown Source)
at com.comsol.model.util.ModelManager.create(Unknown Source)
at com.comsol.model.util.ModelInternalUtil.create(Unknown Source)
at com.comsol.model.util.ModelInternalUtil.create(Unknown Source)
at com.comsol.model.util.ModelUtil.create(Unknown Source)

Error in rect_hole_centerline_182to196_193to199_125to141_sio (line 16)
model = ModelUtil.create('Model');

Username: Username: Username: Username: Username: Username: Username: Username: Username: Username:
ERROR: Could not start COMSOL Application. See log file: /home/common/.comsol/v43/logs/server9.log"

Could anyone give me some suggestion?