Home › Forums › Core › “Call to a member function trigger()” error message › Reply To: “Call to a member function trigger()” error message
Hello,
we had the following plugins installed:
Mailster – Email Newsletter Plugin for WordPress v2.4.6
Mailster for WooCommerce v1.4
Mailster Gravity Forms v1.1.2
Mailster Multi SMTP v1.2
We did deactivate all of them, yet the error is still showing.
