Licensing errors

I have installed Materials Studio 8 in Windows 7 recenly to run through a remote liccense server. Eventhough I could connect to the server I can't run any calculations due to licensing errors. Please let me know the potential reason for these types of errors. Some of them are as follows,

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DFTB Error

Searching for valid license feature...

Error: #-18  (LP 7.6.11)
License server system does not support this feature.
Feature:       MS_dftbplus
License path:  C:\\Program Files (x86)\\Accelrys\\LicensePack\\Licenses -
   \\*.lic;C:\\Program Files (x86)\\Accelrys\\LicensePack\\share\\data\\*.lic;
   1715@xxx.xxx.xxxx.edu
FLEXnet Licensing error:-18,147
For further information, refer to the FLEXnet Licensing End User Guide,
available at "www.macrovision.com".
>>>The license feature does not exist, is 
expired or has a corrupted INCREMENT line 
in license file. You may need to obtain a 
new license to use this functionality.<<<

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CASTEP Error

Job started on host xxxxx
 at Wed Mar 18 17:35:19 2015

 +-------------------------------------------------+
 |                                                 |
 |      CCC   AA    SSS  TTTTT  EEEEE  PPPP        |
 |     C     A  A  S       T    E      P   P       |
 |     C     AAAA   SS     T    EEE    PPPP        |
 |     C     A  A     S    T    E      P           |
 |      CCC  A  A  SSS     T    EEEEE  P           |
 |                                                 |
 +-------------------------------------------------+
 |                                                 |
 | Welcome to Materials Studio CASTEP version 8.0  |
 | Ab Initio Total Energy Program                  |
 |                                                 |
 | Authors:                                        |
 | M. Segall, M. Probert, C. Pickard, P. Hasnip,   |
 | S. Clark, K. Refson, J. R. Yates, M. Payne      |
 |                                                 |
 | Contributors:                                   |
 | P. Lindan, P. Haynes, J. White, V. Milman,      |
 | N. Govind, M. Gibson, P. Tulip, V. Cocula,      |
 | B. Montanari, D. Quigley, M. Glover,            |
 | L. Bernasconi, A. Perlov, M. Plummer,           |
 | E. McNellis, J. Meyer, J. Gale, D. Jochym       |
 | J. Aarons, B. Walker, R. Gillen, D. Jones       |
 | T. Green                                        |
 |                                                 |
 | Copyright (c) 2000 - 2014                       |
 |                                                 |
 | Please cite                                     |
 |                                                 |
 |     "First principles methods using CASTEP"     |
 |                                                 |
 |         Zeitschrift fuer Kristallographie       |
 |           220(5-6) pp. 567-570 (2005)           |
 |                                                 |
 | S. J. Clark, M. D. Segall, C. J. Pickard,       |
 | P. J. Hasnip, M. J. Probert, K. Refson,         |
 | M. C. Payne                                     |
 |                                                 |
 |       in all publications arising from          |
 |              your use of CASTEP                 |
 |                                                 |
 +-------------------------------------------------+
 
 
 This version was compiled for x86_64-windows-msvc2008 on Dec 04 2014
 Code version:    6546
 Intel(R) Math Kernel Library Version 11.1.2 
 Fundamental constants values: CODATA 2010
 
Licensing Error !
Error: Manual heartbeat setup for MS_castep license failed
Failed to check out licenses
Trace stack not available

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DMOL3 Error

DATE:     Mar 19 15:18:47 2015
 
Job started on host xxxxx

This run uses   10 processors

Licensing Error !
Error: Failed to checkout MS_dmol license
 
Message: DMol3 job failed
Error: DMol3 exiting
Message: License checkin of MS_dmol successful
Message: License checkin of MS_dsolid successful