Possible solutions of your questions

Good night.

Check amps. on what address You discovered the error.

the announcement is in VA appears at the entrance to the main page or when logging in to the admin panel?

you have the template contains links to files inside the admin folder wp-admin,

you need to remove those links from the template

the cause is what your plugin bhittani_plugin_kksr_js

the code

<script type=\"text/javascript\">
var bhittani_plugin_kksr_js = {\"nonce\":\"4deba7b8ae\",\"grs\":true,\"ajaxurl\":\"http:\\/\\/sprosi.com.ua\\/wp-admin\\/admin-ajax.php\",\"func\":\"kksr_ajax\",\"msg\":\"\\u041e\\u0446\\u0435\\u043d\\u0438\\u0442\\ u0435 \\u0441\\u0442\\u0430\\u0442\\u044c\\u044e\",\"fuelspeed\":400,\"thankyou\":\"\\u0421\\u043f\\u0430\\u0441\\u0438\\u0431\\u043e\",\"error_msg\":\"An error occurred\",\"tooltip\":\"0\",\"tooltips\":[{\"tip\":\"\",\"color\":\"#ffffff\"},{\"tip\":\"\",\"color\":\"#ffffff\"},{\"tip\":\"\",\"color\":\"#ffffff\"},{\"tip\":\"\",\"color\":\"#ffffff\"},{\"tip\":\"\",\"color\":\"#ffffff\"}]};
</script>

OK