Revslider error. Impossible to enter admin dashboard

No way to enter site admin’s dashboard, cause revslider error. 🙁 How can I fix it? This is the wordpress message: Fatal error: Uncaught Error: [] operator not supported for strings in /home/pikarte7/public_html/boudoir-valencia.com/wp-content/plugins/revslider/includes/framework/base-admin.class.php:71 Stack trace: #0 /home/pikarte7/public_html/boudoir-valencia.com/wp-content/plugins/revslider/admin/revslider-admin.class.php(572): RevSliderBaseAdmin::addMetaBox(‘Revolution Slid…’, ”, Array, NULL) #1 /home/pikarte7/public_html/boudoir-valencia.com/wp-content/plugins/revslider/admin/revslider-admin.class.php(73): RevSliderAdmin->addSliderMetaBox() #2 /home/pikarte7/public_html/boudoir-valencia.com/wp-content/plugins/revslider/admin/revslider-admin.class.php(44): RevSliderAdmin->init() #3 /home/pikarte7/public_html/boudoir-valencia.com/wp-content/plugins/revslider/revslider.php(162): RevSliderAdmin->__construct(‘/home/pikarte7/…’) #4 /home/pikarte7/public_html/boudoir-valencia.com/wp-settings.php(360): include_once(‘/home/pikarte7/…’) #5…

Must I change the admin user email address while changing the general email address in WP?

I changed the email at General -> Settings say from me@gmail.com to info@mysite.com but it seems like the email didn’t change although I received the confirmation email to change. I’m still getting emails from me@gmail.com Do I still need to change the Administrator email under Users to info@mysite.com for the change to take effect? Using…