Don't work Scheduler Rules.Notice: Undefined index: data in function RulesSchedulerDefaultTaskHandler->runTask().

Could you check that rules_scheduler_update_7204() ran through on your site? I.e., the database table
'rules_scheduler' should have a "data" column instead of a "state" column.

/**
 * Rename rules_scheduler.state into rules_scheduler.data.
 */
function rules_scheduler_update_7204() {
  db_change_field('rules_scheduler', 'state', 'data', array(
    'type' => 'text',
    'not null' => FALSE,
    'serialize' => TRUE,
    'description' => 'The whole, serialized evaluation data.',
  ));
}

oh, I see - the problem is probably that there were some items in the queue which are not covered by the updated process. Could you test whether the following patch works for you?

Same issue (I think)

I have a bunch of scheduled jobs in the queue and noticed that when I ran cron manually I got the following notice:

Notice: Undefined index: data in RulesSchedulerDefaultTaskHandler->runTask() (line 30 of /www/ibbr/sites/all/modules/rules/rules_scheduler/includes/rules_scheduler.handler.inc).

And this error in my PHP error logs:

PHP Fatal error: Call to a member function restoreBlocks() on a non-object in /www/ibbr/sites/all/modules/rules/rules_scheduler/includes/rules_scheduler.handler.inc on line 31, referer: https://www.ibbr.umd.edu/admin/reports/status

I went and deleted everything out of my scheduled queue and re-queued a few items and got the same errors.

With the patch in#4 I get different (and exciting) errors!

Notice: Array to string conversion in view->get_url() (line 1639 of /www/ibbr/sites/all/modules/views/includes/view.inc).
Recoverable fatal error: Object of class RulesState could not be converted to string in view->get_url() (line 1639 of /www/ibbr/sites/all/modules/views/includes/view.inc).

#4 work for me

ok, committed #4.