500: Internal Server Error

Traceback

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
    result = request.dispatch()
  File "/home/odoo/src/odoo/odoo/http.py", line 813, in dispatch
    r = self._call_function(**self.params)
  File "/home/odoo/src/odoo/odoo/http.py", line 370, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/service/model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/http.py", line 358, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 919, in __call__
    return self.method(*args, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/website_auth_routes/controller/shop.py", line 40, in shop
    res = super(ShopController, self).shop(page, category, search, ppg, **post)
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/set_limit_to_make_web_order_live/controllers/controllers.py", line 24, in shop
    res = super(ShopController, self).shop(page, category, search, ppg, **post)
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/publish_specific_variant/controllers/controllers.py", line 61, in shop
    res = super(WebsiteSaleExt, self).shop(page=page, category=category,
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/back_button_product/controller/shop.py", line 32, in shop
    request.session['ro_category'] = category.id
Exception

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

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
    result = request.dispatch()
  File "/home/odoo/src/odoo/odoo/http.py", line 813, in dispatch
    r = self._call_function(**self.params)
  File "/home/odoo/src/odoo/odoo/http.py", line 370, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/service/model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/http.py", line 358, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 919, in __call__
    return self.method(*args, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/website_auth_routes/controller/shop.py", line 40, in shop
    res = super(ShopController, self).shop(page, category, search, ppg, **post)
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/set_limit_to_make_web_order_live/controllers/controllers.py", line 24, in shop
    res = super(ShopController, self).shop(page, category, search, ppg, **post)
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/publish_specific_variant/controllers/controllers.py", line 61, in shop
    res = super(WebsiteSaleExt, self).shop(page=page, category=category,
  File "/home/odoo/src/odoo/odoo/http.py", line 544, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/user/back_button_product/controller/shop.py", line 32, in shop
    request.session['ro_category'] = category.id
AttributeError: 'str' object has no attribute 'id'