Error on save of articles and categories

by Kate Kleiman   Last Updated October 23, 2017 17:10 PM

I'm getting this error when I try to save new category. However, the category is created after I refresh listing. Any ideas?

Call to undefined method Joomla\CMS\Application\AdministratorApplication::getParams() 

Joomla version 3.8.1 PhP 7.0 All extensions are up-to-date and I disabled any that are not specifically joomla 3.8 compliant Also running civicrm 4.7.25

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