I get this error when i click on the parameters in my dashboard. 
Someone can hepls me please 
Thanks. 

this is the error message : 

Traceback (most recent call last):
  File "/home/odoo/src/odoo/saas-17.1/odoo/http.py", line 1851, in _transactioning
    return service_model.retrying(func, env=self.env)
  File "/home/odoo/src/odoo/saas-17.1/odoo/service/model.py", line 134, in retrying
    result = func()
  File "/home/odoo/src/odoo/saas-17.1/odoo/http.py", line 1829, in _serve_ir_http
    return self._serve_ir_http(rule, args)
  File "/home/odoo/src/odoo/saas-17.1/odoo/http.py", line 1836, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
  File "/home/odoo/src/odoo/saas-17.1/odoo/http.py", line 2061, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
  File "/home/odoo/src/odoo/saas-17.1/odoo/addons/base/models/ir_http.py", line 222, in _dispatch
    result = endpoint(**request.params)
  File "/home/odoo/src/odoo/saas-17.1/odoo/http.py", line 743, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "/home/odoo/src/odoo/saas-17.1/addons/web/controllers/dataset.py", line 38, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/home/odoo/src/odoo/saas-17.1/addons/web/controllers/dataset.py", line 34, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/odoo/src/odoo/saas-17.1/odoo/api.py", line 458, in call_kw
    result = getattr(recs, name)(*args, **kwargs)
  File "/home/odoo/src/odoo/saas-17.1/addons/web/models/models.py", line 1034, in onchange
    record._update_cache(changed_values)
  File "/home/odoo/src/odoo/saas-17.1/odoo/models.py", line 6097, in _update_cache
    value = field.convert_to_cache(value, self, validate)
  File "/home/odoo/src/odoo/saas-17.1/odoo/fields.py", line 2811, in convert_to_cache
    raise ValueError("Wrong value for %s: %r" % (self, value))
ValueError: Wrong value for res.config.settings.chart_template: 'syscohada'

The above server error caused the following client error:
OwlError: An error occured in the owl lifecycle (see this Error's "cause" property)
    at handleError (https://affirmativegroups.odoo.com/web/assets/2ba4f22/web.assets_web.min.js:947:101)
    at App.handleError (https://affirmativegroups.odoo.com/web/assets/2ba4f22/web.assets_web.min.js:1573:29)
    at ComponentNode.initiateRender (https://affirmativegroups.odoo.com/web/assets/2ba4f22/web.assets_web.min.js:1037:19)

Caused by: RPC_ERROR: Odoo Server Error
    at makeErrorFromResponse (https://affirmativegroups.odoo.com/web/assets/2ba4f22/web.assets_web.min.js:2905:163)
    at XMLHttpRequest. (https://affirmativegroups.odoo.com/web/assets/2ba4f22/web.assets_web.min.js:2910:13)