Message that appears after rebooting my server

2014-06-16 19:36:44,019 11845 INFO ? openerp.service: Hit CTRL-C again or send a second signal to force the shutdown.
2014-06-16 19:36:45,403 11903 INFO ? openerp: OpenERP version 7.0-20140605-231138
2014-06-16 19:36:45,403 11903 INFO ? openerp: addons paths: /opt/openerp/addons
2014-06-16 19:36:45,403 11903 INFO ? openerp: database hostname: localhost
2014-06-16 19:36:45,403 11903 INFO ? openerp: database port: 5432
2014-06-16 19:36:45,403 11903 INFO ? openerp: database user: openerp
2014-06-16 19:36:46,081 11903 CRITICAL ? openerp.modules.module: Couldn't load module web
2014-06-16 19:36:46,081 11903 CRITICAL ? openerp.modules.module: No module named xlrd
2014-06-16 19:36:46,081 11903 ERROR ? openerp.service: Failed to load server-wide module `web`.
The `web` module is provided by the addons found in the `openerp-web` project.
Maybe you forgot to add those addons in your addons_path configuration.
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/openerp/service/__init__.py", line 60, in load_server_wide_modules
    openerp.modules.module.load_openerp_module(m)
  File "/usr/lib/pymodules/python2.7/openerp/modules/module.py", line 415, in load_openerp_module
    getattr(sys.modules['openerp.addons.' + module_name], info['post_load'])()
  File "/usr/lib/pymodules/python2.7/openerp/addons/web/http.py", line 628, in wsgi_postload
    openerp.wsgi.register_wsgi_handler(Root())
  File "/usr/lib/pymodules/python2.7/openerp/addons/web/http.py", line 517, in __init__
    self.load_addons()
  File "/usr/lib/pymodules/python2.7/openerp/addons/web/http.py", line 580, in load_addons
    m = __import__('openerp.addons.' + module)
  File "/usr/lib/pymodules/python2.7/openerp/modules/module.py", line 133, in load_module
    mod = imp.load_module('openerp.addons.' + module_part, f, path, descr)
  File "/usr/lib/pymodules/python2.7/openerp/addons/gap_analysis/__init__.py", line 24, in <module>
    import wizard
  File "/usr/lib/pymodules/python2.7/openerp/addons/gap_analysis/wizard/__init__.py", line 24, in <module>
    import import_from_sheet
  File "/usr/lib/pymodules/python2.7/openerp/addons/gap_analysis/wizard/import_from_sheet.py", line 31, in <module>
    import xlrd
ImportError: No module named xlrd
2014-06-16 19:36:46,096 11903 INFO ? openerp.service.wsgi_server: HTTP service (werkzeug) running on 0.0.0.0:8069
2014-06-16 19:36:46,097 11903 INFO ? openerp: OpenERP server is running, waiting for connections...
root@Stedmyself:/var/log/openerp#