Error: Notice: Undefined index: und in mymodule_handler_product_link->render() (line 16 of /sites/all/modules/custom/mymodule/mymodule_handler_product_link.inc)

Code: $product_url = $entity->field_item_url[LANGUAGE_NONE][0]['value'];

Error: Notice: Undefined index: und in mymodule_handler_product_link->render() (line 16 of /custom/mymodule/mymodule_handler_product_link.inc)

Drupal 7 organic groups error: Can't save entity as group, because user Admin can't be subscribed to group and become a manager

I'm getting the following error when trying to save content: Can't save entity as group, because user Admin can't be subscribed to group and become a manager

Get Amazon Associate account approved

Amazon requires that a new associate make at least three qualified referrals in order to be approved for their associate program. One key requirement is that the site must have sufficient unique content. What qualifies as sufficient unique content is unclear, but some users have suggested 16 or more pages.
Tasks:
1. Investigate what constitute sufficient unique content
2. Determine how to satisfy this requirement
3. Get qualified clicks

Errors when editing selected users or associating them with content

Error on user edit:Editing Admin
Notice: Trying to get property of non-object in entity_metadata_no_hook_node_access() (line 685 of /var/www/html/main.marketplace/sites/all/modules/entity/modules/callbacks.inc).
Notice: Trying to get property of non-object in entity_metadata_no_hook_node_access() (line 685 of /var/www/html/main.marketplace/sites/all/modules/entity/modules/callbacks.inc).
EntityMalformedException: Missing bundle property on entity of type node. in entity_extract_ids() (line 7933 of /var/www/html/main.marketplace/includes/common.inc).

Drupal: incompatibility issue between commerce checkout and organic groups on my site

Next project: Drupal: incompatibility issue between commerce checkout and organic groups on my site
Error:
OgException: There are no OG fields in entity <em class="placeholder">user</em> and bundle <em class="placeholder">user</em> referencing <em class="placeholder">commerce_customer_profile</em> - <em class="placeholder">billing</em>. in og_group() (line 2035 of ***/sites/all/modules/og/og.module).

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