 array:3 [
  0 => "+"
  1 => "4968+5033+5065+5019+5145+4983+4996"
  2 => "/project-search"
]

 array:3 [
  0 => "+"
  1 => "5009+5030+4974+5021+5019+5035+5002+5145"
  2 => "/project-search"
]

 array:3 [
  0 => "+"
  1 => "5009+5114+5049+5002+5125"
  2 => "/project-search"
]

 array:3 [
  0 => "+"
  1 => "5032+5132+5049+5019+5035+5002"
  2 => "/project-search"
]

 array:3 [
  0 => "+"
  1 => "4968+5033+5065+5019+5145+4983+4996"
  2 => "/project-search"
]

 array:3 [
  0 => "+"
  1 => "5009+5030+4974+5021+5019+5035+5002+5145"
  2 => "/project-search"
]

 array:3 [
  0 => "+"
  1 => "5009+5114+5049+5002+5125"
  2 => "/project-search"
]

 array:3 [
  0 => "+"
  1 => "5032+5132+5049+5019+5035+5002"
  2 => "/project-search"
]

The website encountered an unexpected error. Try again later.

TypeError: Cannot assign null to property Drupal\views\Plugin\views\argument\ArgumentPluginBase::$operator of type string in Drupal\views\Plugin\views\argument\ArgumentPluginBase->unpackArgumentValue() (line 1302 of core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php).