Article: Multiple Action - Add Tag Error - Joomla! Forum - community, help and support

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hello,
we have issue in joomla 3.8.1 ( running on centos 7 machine, apache 2.4, php 7).
when select more 1 article , try execute multiple action ( add tag ), error comes out

kexceptionerror | fatal error [500]
call member function setnewtags() on null
.../libraries/src/mvc/model/adminmodel.php:635
630
631 /**
632 * @var \jtableobservertags $tagsobserver
633 */
634 $tagsobserver = $table->getobserverofclass('\jtableobservertags');
635 $result = $tagsobserver->setnewtags($tags, false);
636
637 if (!$result)
638 {
639 $this->seterror($table->geterror());
640
kexceptionhandlerabstract->_handleexception()
{php internal call}


any idea?

any appreciated.

best regards,
riccardo






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