Hi good afternoon!

I am relatively new to using Odoo CE and recently performed the installation and only use the CRM app. Everything was fine until recently, but today I can't access the app settings anymore. See the error message:

Error:
Odoo Server Error

Traceback (most recent call last):
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ http.py", line 619, in _handle_exception
    return super (JsonRequest, self) ._ handle_exception (exception)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ http.py", line 309, in _handle_exception
    raise pycompat.reraise (type (exception), exception, sys.exc_info () [2])
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ tools \ pycompat.py", line 14, in reraise
    raise value
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ http.py", line 664, in dispatch
    result = self._call_function (** self.params)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ http.py", line 345, in _call_function
    return checked_call (self.db, * args, ** kwargs)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ service \ model.py", line 93, in wrapper
    return f (dbname, * args, ** kwargs)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ http.py", line 338, in checked_call
    result = self.endpoint (* a, ** kw)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ http.py", line 909, in __call__
    return self.method (* args, ** kw)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ http.py", line 510, in response_wrap
    response = f (* args, ** kw)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ node \ addons \ web \ controllers \ main.py", line 1238, in call_kw
    return self._call_kw (model, method, args, kwargs)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ mode \ addons \ web \ controllers \ main.py", line 1230, in _call_kw
    return call_kw (request.env [model], method, args, kwargs)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ api.py", line 406, in call_kw
    result = _call_kw_model (method, model, args, kwargs)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ api.py", line 379, in _call_kw_model
    result = method (recs, * args, ** kwargs)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ models.py", line 1380, in load_views
    for [v_id, v_type] in views
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ models.py", line 1380, in <dictcomp>
    for [v_id, v_type] in views
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odeo \ addons \ base \ models \ res_config.py", line 386, in fields_view_get
    toolbar = toolbar, submenu = submenu)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ mode \ addons \ web \ models \ models.py", line 203, in fields_view_get
    r = super (). fields_view_get (view_id, view_type, toolbar, submenu)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odoo \ models.py", line 1466, in fields_view_get
    xarch, xfields = View.postprocess_and_fields (self._name, etree.fromstring (result ['arch']), view_id)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ mode \ addons \ base \ models \ ir_ui_view.py", line 957, in postprocess_and_fields
    self.raise_view_error (message, view_id)
  File "C: \ Program Files (x86) \ Odoo 13.0 \ server \ odeo \ addons \ base \ models \ ir_ui_view.py", line 590, in raise_view_error
    raise ValueError (message)
ValueError: Field `product_weight_in_lbs` does not exist

Error Context:
See `res.config.settings.view.form.inherit.crm`
[view_id: 475, xml_id: crm.res_config_settings_view_form, model: res.config.settings, parent_id: 165]

Could someone help me with this? Version 13.
Appreciate!