Hi,

I was editing Odoo product page design and added small part of the code trough "HTML/CSS Editor", once i saved the page I got following error:

'NoneType' object has no attribute 'product_id'
Traceback (most recent call last):
  File "/opt/odoo/odoo/addons/base/ir/ir_qweb/qweb.py", line 343, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_784_86982
  File "<template>", line 2, in body_call_content_86981
AttributeError: 'NoneType' object has no attribute 'product_id'

Error to render compiling AST
AttributeError: 'NoneType' object has no attribute 'product_id'
Template: 784
Path: /templates/t/t/div/section/div/div[2]/form/div/ul
Node: <ul t-foreach="l.product_id.attribute_value_ids" t-as="attrib_value">
    <li t-esc=" '%s: %s' % (attrib_value.attribute_id.name, attrib_value.name)"/>
</ul>

now the page wont load so I can opne that HTML/CSS Editor again in order to fix the page and remove that code again. How can I access that editor again?

Thanks for your help!