Found the problem by myself… there was an “optimization” inside my child-themes functions.php which prevented loading of wpcf7s js and css.
add_filter( 'wpcf7_load_js', '__return_false' );
add_filter( 'wpcf7_load_css', '__return_false' );
What’s that good for? Cause i just use forms within 2 of 50 pages, and i don’t want to load all the unnecessary tons of code on each page.
Have you any other solution to prevent loading the unnecessary files from wpcf7 on pages which don’t contains any form?
I don’t have the default templates anymore because of security – but it worked until some weeks ago…