I am unable to login into back end of joomla, i am using joomla 3.6 and when i operate PHP Version 7.0.12 and try login, i get
Fatal error: Call to undefined method WFEditor::getContext() in ......../administrator/components/com_jce/models/model.php on line 128
but while using PHP Version 5.4.43 the administrator/index.php page does not even load.
The way i solved it was by going into phpMyAdmin (database) and disable the component that was causing problem (in this case JCE) and now I was able to login and updated the component.
Worked back then.