I'm running Odoo14 EE On-Premise. Its already has a database with several existing data. However, I tried to install the E-Commerce (website_sales) module using the app menu, but it always keeps running into the following error:

Error:
Odoo Server Error

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/odoo/tools/convert.py", line 677, in _tag_root
f(rec)
File "/usr/lib/python3/dist-packages/odoo/tools/convert.py", line 530, in _tag_record
raise Exception("Cannot update missing record %r" % xid)
Exception: Cannot update missing record 'product.list0'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
result = request.dispatch()
File "/usr/lib/python3/dist-packages/odoo/http.py", line 683, in dispatch
result = self._call_function(**self.params)
File "/usr/lib/python3/dist-packages/odoo/http.py", line 359, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/usr/lib/python3/dist-packages/odoo/service/model.py", line 94, in wrapper
return f(dbname, *args, **kwargs)
File "/usr/lib/python3/dist-packages/odoo/http.py", line 347, in checked_call
result = self.endpoint(*a, **kw)
File "/usr/lib/python3/dist-packages/odoo/http.py", line 912, in __call__
return self.method(*args, **kw)
File "/usr/lib/python3/dist-packages/odoo/http.py", line 531, in response_wrap
response = f(*args, **kw)
File "/usr/lib/python3/dist-packages/odoo/addons/web/controllers/main.py", line 1393, in call_button
action = self._call_kw(model, method, args, kwargs)
File "/usr/lib/python3/dist-packages/odoo/addons/web/controllers/main.py", line 1381, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "/usr/lib/python3/dist-packages/odoo/api.py", line 396, in call_kw
result = _call_kw_multi(method, model, args, kwargs)
File "/usr/lib/python3/dist-packages/odoo/api.py", line 383, in _call_kw_multi
result = method(recs, *args, **kwargs)
File "", line 2, in button_immediate_install
File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_module.py", line 73, in check_and_log
return method(self, *args, **kwargs)
File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_module.py", line 474, in button_immediate_install
return self._button_immediate_function(type(self).button_install)
File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_module.py", line 592, in _button_immediate_function
modules.registry.Registry.new(self._cr.dbname, update_module=True)
File "/usr/lib/python3/dist-packages/odoo/modules/registry.py", line 89, in new
odoo.modules.load_modules(registry._db, force_demo, status, update_module)
File "/usr/lib/python3/dist-packages/odoo/modules/loading.py", line 453, in load_modules
processed_modules += load_marked_modules(cr, graph,
File "/usr/lib/python3/dist-packages/odoo/modules/loading.py", line 346, in load_marked_modules
loaded, processed = load_module_graph(
File "/usr/lib/python3/dist-packages/odoo/modules/loading.py", line 221, in load_module_graph
load_data(cr, idref, mode, kind='data', package=package)
File "/usr/lib/python3/dist-packages/odoo/modules/loading.py", line 69, in load_data
tools.convert_file(cr, package.name, filename, idref, mode, noupdate, kind)
File "/usr/lib/python3/dist-packages/odoo/tools/convert.py", line 733, in convert_file
convert_xml_import(cr, module, fp, idref, mode, noupdate)
File "/usr/lib/python3/dist-packages/odoo/tools/convert.py", line 799, in convert_xml_import
obj.parse(doc.getroot())
File "/usr/lib/python3/dist-packages/odoo/tools/convert.py", line 719, in parse
self._tag_root(de)
File "/usr/lib/python3/dist-packages/odoo/tools/convert.py", line 677, in _tag_root
f(rec)
File "/usr/lib/python3/dist-packages/odoo/tools/convert.py", line 681, in _tag_root
raise ParseError('while parsing %s:%s, near\n%s' % (
Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/odoo/http.py", line 639, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/usr/lib/python3/dist-packages/odoo/http.py", line 315, in _handle_exception
raise exception.with_traceback(None) from new_cause
odoo.tools.convert.ParseError: while parsing /usr/lib/python3/dist-packages/odoo/addons/website_sale/data/data.xml:44, near

Can someone help me with this?