Monzur Alam

I find the proper solution but did not get anywhere, I try also Disable Rest API. After the last moment rollback plugin to 4.5 version via wp-rollback plugin.

Another Method works simply add to your theme functions.php or use the code-snippets plugin.
add_filter( 'wpcf7_load_js', '__return_false' );

Hey Sunny,

after your recommendation shortcode, I implement it into the website. it shows notice sometimes. when it shows an error then site loading time increases.

Screenshot link: https://prnt.sc/10s6cvk