I am trying to add a module "Advance Printscreen" and recieving below error. Any help?

Traceback (most recent call last):
File "/opt/odoo/odoo/openerp/http.py", line 476, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/opt/odoo/odoo/openerp/http.py", line 495, in dispatch
result = self._call_function(**self.params)
File "/opt/odoo/odoo/openerp/http.py", line 311, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/opt/odoo/odoo/openerp/service/model.py", line 113, in wrapper
return f(dbname, *args, **kwargs)
File "/opt/odoo/odoo/openerp/http.py", line 308, in checked_call
return self.endpoint(*a, **kw)
File "/opt/odoo/odoo/openerp/http.py", line 685, in __call__
return self.method(*args, **kw)
File "/opt/odoo/odoo/openerp/http.py", line 360, in response_wrap
response = f(*args, **kw)
File "/opt/odoo/odoo/addons/web/controllers/main.py", line 945, in call_button
action = self._call_kw(model, method, args, {})
File "/opt/odoo/odoo/addons/web/controllers/main.py", line 933, in _call_kw
return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)
File "/opt/odoo/odoo/openerp/api.py", line 233, in wrapper
return old_api(self, *args, **kwargs)
File "/opt/odoo/odoo/openerp/api.py", line 387, in old_api
result = new_api(recs, *args, **kwargs)
File "/opt/odoo/odoo/openerp/api.py", line 391, in new_api
result = [method(rec, *args, **kwargs) for rec in self]
File "/opt/odoo/odoo/openerp/addons/base/module/wizard/base_module_update.py", line 15, in update_module
self.updated, self.added = self.env['ir.module.module'].update_list()
File "/opt/odoo/odoo/openerp/api.py", line 231, in wrapper
return new_api(self, *args, **kwargs)
File "/opt/odoo/odoo/openerp/api.py", line 460, in new_api
result = method(self._model, cr, uid, *args, **kwargs)
File "/opt/odoo/odoo/openerp/addons/base/module/module.py", line 653, in update_list
handler.load_addons()
File "/opt/odoo/odoo/openerp/http.py", line 1186, in load_addons
m = __import__('openerp.addons.' + module)
File "/opt/odoo/odoo/openerp/modules/module.py", line 76, in load_module
mod = imp.load_module('openerp.addons.' + module_part, f, path, descr)
File "/opt/odoo/odoo/addons/web_printscreen_zb/__init__.py", line 25, in
import controllers
File "/opt/odoo/odoo/addons/web_printscreen_zb/controllers.py", line 28, in
import web.http as openerpweb
ImportError: No module named web.http - See more at: http://www.zbeanztech.com/blog/advanced-printscreen-openerp-7#sthash.oSA4xzkd.dpuf