As the title said. I left my traceback below.
It looks like overwriting portal.portal_my_details something crashed.
The error occured while rendering the template portal.frontend_layout and evaluating the following expression: t t-set="x_icon" t-value="'/web/image/website/%s/favicon/' % website.id"
    
    
Thanks in advance for any reponse.


Traceback (most recent call last):
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 348, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "", line 1, in template_portal_frontend_layout_371
  File "", line 1, in body_call_content_370
AttributeError: 'str' object has no attribute 'id'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/ir_http.py", line 208, in _dispatch
    result = request.dispatch()
  File "/home/arubioh/Odoo/12.0/odoo/http.py", line 835, in dispatch
    r = self._call_function(**self.params)
  File "/home/arubioh/Odoo/12.0/odoo/http.py", line 346, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/arubioh/Odoo/12.0/odoo/service/model.py", line 98, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/arubioh/Odoo/12.0/odoo/http.py", line 342, in checked_call
    result.flatten()
  File "/home/arubioh/Odoo/12.0/odoo/http.py", line 1270, in flatten
    self.response.append(self.render())
  File "/home/arubioh/Odoo/12.0/odoo/http.py", line 1263, in render
    return env["ir.ui.view"].render_template(self.template, self.qcontext)
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/ir_ui_view.py", line 1338, in render_template
    return self.browse(self.get_view_id(template)).render(values, engine)
  File "/home/arubioh/Liberexpress/odoo/addons/website/models/ir_ui_view.py", line 322, in render
    return super(View, self).render(values, engine=engine, minimal_qcontext=minimal_qcontext)
  File "/home/arubioh/Liberexpress/odoo/addons/web_editor/models/ir_ui_view.py", line 29, in render
    return super(IrUiView, self).render(values=values, engine=engine, minimal_qcontext=minimal_qcontext)
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/ir_ui_view.py", line 1347, in render
    return self.env[engine].render(self.id, qcontext)
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/ir_qweb.py", line 59, in render
    result = super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 275, in render
    self.compile(template, options)(self, body.append, values or {})
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 350, in _compiled_fn
    raise e
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 348, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "", line 1, in template_347_293
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 350, in _compiled_fn
    raise e
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 348, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "", line 1, in template_portal_portal_layout_315
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 355, in _compiled_fn
    raise QWebException("Error to render compiling AST", e, path, node and etree.tostring(node[0], encoding='unicode'), name)
odoo.addons.base.models.qweb.QWebException: 'str' object has no attribute 'id'
Traceback (most recent call last):
  File "/home/arubioh/Odoo/12.0/odoo/addons/base/models/qweb.py", line 348, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "", line 1, in template_portal_frontend_layout_371
  File "", line 1, in body_call_content_370
AttributeError: 'str' object has no attribute 'id'

Error to render compiling AST
AttributeError: 'str' object has no attribute 'id'
Template: portal.frontend_layout
Path: /templates/t/t/t[4]
Node: