运行IDL的时候，出现下面的问题，能解决吗？
IDL Version 8.1 (linux x86 m32). (c) 2011, ITT Visual Information Solutions
% LICENSE MANAGER: The desired vendor daemon is down.
Check the lmgrd log file, or try lmreread.
Feature: idl
Vendor:Host: zb-Lenovo
License path: /usr/local/itt/idl/idl81/../../license/license.dat:/usr/loca
l/itt/license/.lic:
FLEXnet Licensing error:-97,121
For further information, refer to the FLEXnet Licensing documentation,
available at "www.acresso.com"..
License file: /usr/local/itt/idl/idl81/../../license/license.dat:/usr/local
/itt/license/.lic