I am new with WordPress. I installed it locally using XAMPP and it works.
Problem: After installing and activating the Plugin "ContactForm 7" the dashbord changed it´s appearance - it expanded on the screen. And: I got the following massage on the top:
Warning: Parameter 1 to wpcf7_add_tag_generator_hidden() expected to be a reference, value given in C:\xampp\htdocs\wordpress\wp-includes\plugin.php on line 395
I don´t know what that means and how I can enter any parameter or additional code.
When I try to start with Contact Form 7 the program is canceling.
Please give me some helpful information - thank you very much!
Henning Stodte, Germany