Fatal error: Uncaught TypeError: date_formatter_process(): Argument #7 ($item) must be of type array, null given, called in /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/sites/all/modules/date/date.field.inc on line 215 and defined in /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/sites/all/modules/date/date.module:223
Stack trace:
#0 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/sites/all/modules/date/date.field.inc(215): date_formatter_process('date_default', 'node', Object(stdClass), Array, Array, 'und', NULL, Array)
#1 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/modules/field/field.default.inc(210): date_field_formatter_view('node', Object(stdClass), Array, Array, 'und', Array, Array)
#2 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/modules/field/field.attach.inc(209): field_default_view('node', Object(stdClass), Array, Array, 'und', Array, Array, NULL)
#3 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/modules/field/field.attach.inc(385): _field_invoke('view', 'node', Object(stdClass), Array, NULL, Array)
#4 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/modules/field/field.module(903): _field_invoke_default('view', 'node', Object(stdClass), Array, NULL, Array)
#5 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/modules/field/field.module(807): field_view_field('node', Object(stdClass), 'field_datum', Array, 'und')
#6 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/sites/all/modules/ow/ow.module(2302): field_view_value('node', Object(stdClass), 'field_datum', NULL)
#7 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/sites/all/modules/ow/ow.module(92): ow_get_newsletter(Object(stdClass), 'screen')
#8 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/includes/theme.inc(1125): ow_preprocess_page(Array, 'maintenance_pag...')
#9 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/includes/errors.inc(252): theme('maintenance_pag...', Array)
#10 /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/includes/bootstrap.inc(2670): _drupal_log_error(Array, true)
#11 [internal function]: _drupal_exception_handler(Object(TypeError))
#12 {main}
thrown in /is/htdocs/wp1146846_9VAPBJ71MI/tonno/website/sites/all/modules/date/date.module on line 223