Manage payments using Paypal crashes

openerp_8.0dev-20140213

Changing Configuration --> Account --> Manage payments using Paypal

OpenERP Server Error

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/openerp/http.py", line 348, in dispatch
    response["result"] = self._call_function(**self.params)
  File "/usr/lib/pymodules/python2.7/openerp/http.py", line 220, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/service/model.py", line 113, in wrapper
    return f(dbname, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/http.py", line 215, in checked_call
    return self.func(*a, **kw)
  File "/usr/lib/pymodules/python2.7/openerp/http.py", line 532, in __call__
    return self.method(*args, **kw)
  File "/usr/lib/pymodules/python2.7/openerp/addons/web/controllers/main.py", line 1207, in call_button
    action = self._call_kw(model, method, args, {})
  File "/usr/lib/pymodules/python2.7/openerp/addons/web/controllers/main.py", line 1195, in _call_kw
    return getattr(request.registry.get(model), method)(request.cr, request.uid, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base/res/res_config.py", line 542, in execute
    action = self._install_modules(cr, uid, to_install, context=context)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base/res/res_config.py", line 54, in _install_modules
    result = ir_module.button_immediate_install(cr, uid, to_install_ids, context=context)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base/module/module.py", line 426, in button_immediate_install
    return self._button_immediate_function(cr, uid, ids, self.button_install, context=context)
  File "/usr/lib/pymodules/python2.7/openerp/addons/base/module/module.py", line 477, in _button_immediate_function
    registry = openerp.modules.registry.RegistryManager.new(cr.dbname, update_module=True)
  File "/usr/lib/pymodules/python2.7/openerp/modules/registry.py", line 271, in new
    openerp.modules.load_modules(registry.db, force_demo, status, update_module)
  File "/usr/lib/pymodules/python2.7/openerp/modules/loading.py", line 334, in load_modules
    loaded_modules, update_module)
  File "/usr/lib/pymodules/python2.7/openerp/modules/loading.py", line 238, in load_marked_modules
    loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)
  File "/usr/lib/pymodules/python2.7/openerp/modules/loading.py", line 175, in load_module_graph
    _load_data(cr, module_name, idref, mode, kind='data')
  File "/usr/lib/pymodules/python2.7/openerp/modules/loading.py", line 116, in _load_data
    tools.convert_file(cr, module_name, filename, idref, mode, noupdate, kind, report)
  File "/usr/lib/pymodules/python2.7/openerp/tools/convert.py", line 967, in convert_file
    convert_xml_import(cr, module, fp, idref, mode, noupdate, report)
  File "/usr/lib/pymodules/python2.7/openerp/tools/convert.py", line 1053, in convert_xml_import
    obj.parse(doc.getroot())
  File "/usr/lib/pymodules/python2.7/openerp/tools/convert.py", line 921, in parse
    self._tags[rec.tag](self.cr, rec, n)
  File "/usr/lib/pymodules/python2.7/openerp/tools/convert.py", line 380, in _tag_function
    _eval_xml(self,rec, self.pool, cr, uid, self.idref, context=context)
  File "/usr/lib/pymodules/python2.7/openerp/tools/convert.py", line 236, in _eval_xml
    res = getattr(model, method)(cr, uid, *args)
  File "/usr/lib/pymodules/python2.7/openerp/addons/payment_paypal/models/paypal.py", line 75, in _migrate_paypal_account
    }, context=context)
  File "/usr/lib/pymodules/python2.7/openerp/osv/orm.py", line 4111, in create
    tuple([f[2] for f in columns if len(f) > 2])
  File "/usr/lib/pymodules/python2.7/openerp/sql_db.py", line 153, in wrapper
    return f(self, *args, **kwargs)
  File "/usr/lib/pymodules/python2.7/openerp/sql_db.py", line 218, in execute
    res = self._obj.execute(query, params)
ParseError: "null value in column "name" violates not-null constraint
" while parsing /usr/lib/pymodules/python2.7/openerp/addons/payment_paypal/data/paypal.xml:18, near
<function model="payment.acquirer" name="_migrate_paypal_account"/>