Hello everybody,

We are trying to implement purchasing in Odoo 12 CE. The problem we are having is when a vendor clicks the link that we send them they are shown a "500 Internal Server Error". I tracked down the log entry and I will post it below. Any help in resolving this issue would be greatly appreciated.

2019-01-25 14:39:51,495 955 INFO odoo odoo.addons.base.models.ir_model: Access Denied by ACLs for operation: read, uid: 4, model: purchase.order 
2019-01-25 14:39:51,545 955 ERROR odoo odoo.addons.website.models.ir_http: 500 Internal Server Error:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/qweb.py", line 344, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_1332_4912
  File "<template>", line 2, in body_call_content_4911
  File "<template>", line 35, in foreach_4907
  File "/usr/lib/python3/dist-packages/odoo/tools/image.py", line 330, in image_data_uri
    FILETYPE_BASE64_MAGICWORD.get(base64_source[:1], 'png'),
TypeError: 'bool' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_http.py", line 203, in _dispatch
    result = request.dispatch()
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 832, in dispatch
    r = self._call_function(**self.params)
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 344, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/odoo/service/model.py", line 97, in wrapper
    return f(dbname, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 340, in checked_call
    result.flatten()
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 1267, in flatten
    self.response.append(self.render())
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 1260, in render
    return env["ir.ui.view"].render_template(self.template, self.qcontext)
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_ui_view.py", line 1276, in render_template
    return self.browse(self.get_view_id(template)).render(values, engine)
  File "/usr/lib/python3/dist-packages/odoo/addons/website/models/ir_ui_view.py", line 231, in render
    return super(View, self).render(values, engine=engine, minimal_qcontext=minimal_qcontext)
  File "/usr/lib/python3/dist-packages/odoo/addons/web_editor/models/ir_ui_view.py", line 27, in render
    return super(IrUiView, self).render(values=values, engine=engine, minimal_qcontext=minimal_qcontext)
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_ui_view.py", line 1285, in render
    return self.env[engine].render(self.id, qcontext)
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_qweb.py", line 59, in render
    result = super(IrQWeb, self).render(id_or_xml_id, values=values, **context)
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/qweb.py", line 272, in render
    self.compile(template, options)(self, body.append, values or {})
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/qweb.py", line 351, 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: 'bool' object is not subscriptable
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/qweb.py", line 344, in _compiled_fn
    return compiled(self, append, new, options, log)
  File "<template>", line 1, in template_1332_4912
  File "<template>", line 2, in body_call_content_4911
  File "<template>", line 35, in foreach_4907
  File "/usr/lib/python3/dist-packages/odoo/tools/image.py", line 330, in image_data_uri
    FILETYPE_BASE64_MAGICWORD.get(base64_source[:1], 'png'),
TypeError: 'bool' object is not subscriptable

Error to render compiling AST
TypeError: 'bool' object is not subscriptable
Template: 1332
Path: /templates/t/t/div[2]/div/div[2]/t/div/div[1]/img
Node: <img t-att-src="image_data_uri(resize_to_48(ol.product_id.image))" alt="Product"/>
                  
 
2019-01-25 14:39:51,551 955 INFO odoo werkzeug: 96.92.191.54 - - [25/Jan/2019 14:39:51] "GET /my/purchase/4?model=purchase.order&res_id=4&access_token=8259b09a-7819-4dad-bab5-070b22a067fd HTTP/1.1" 500 - 53 0.021 0.045
2019-01-25 14:39:51,737 955 INFO odoo werkzeug: 96.92.191.54 - - [25/Jan/2019 14:39:51] "GET /web/webclient/qweb?mods= HTTP/1.1" 200 - 1 0.000 0.003
2019-01-25 14:39:51,739 955 INFO odoo werkzeug: 96.92.191.54 - - [25/Jan/2019 14:39:51] "POST /web/webclient/bootstrap_translations HTTP/1.1" 200 - 1 0.000 0.002
2019-01-25 14:40:06,875 955 INFO odoo werkzeug: 127.0.0.1 - - [25/Jan/2019 14:40:06] "POST /longpolling/poll HTTP/1.1" 200 - 9 0.003 50.008