White screen for request_token/authorize/access_token pages

I'm finding myself significantly challenged with implementing the Oauth module. I have Services (7 dev) producing a content api (through the contentapi module). The api itself works great but I obviously want some authentication on it.

All of the request_token/authorize/access_token pages produce white screens with no error generated, even in the Apache logs.

The Authorization tab from the user page takes me to user/1/oauth which just has an empty table with headers: Application Key Created Expires Operations

I am able to access user/1/oauth/consumer/ and generate a token and secret, but no other user can request one.
I cannot get the keys then to work in a URL test.

I'm sure there is something simple I'm missing. I thank you in advance for your help.

Export of Context:

$context = new stdClass;
$context->disabled = FALSE; /* Edit this to true to make a default context disabled initially */
$context->api_version = 1;
$context->name = 'content_api';
$context->title = 'Content API';
$context->authorization_options = array(
'access_token_lifetime' => 0,
'page_title' => 'Content API',
'message' => 'Authorize',
'warning' => 'Warning',
'deny_access_title' => 'Not Authorized',
'grant_access_title' => 'Granted',
'disable_auth_level_selection' => 1,
'signature_methods' => array(
0 => 'HMAC-SHA1',
1 => 'HMAC-SHA256',
2 => 'HMAC-SHA384',
3 => 'HMAC-SHA512',
),
'default_authorization_levels' => array(
0 => 'api_user',
),
);
$context->authorization_levels = array(
'api_user' => array(
'name' => 'api_user',
'title' => 'API User',
'default' => 1,
'delete' => 0,
'description' => '',
),
);