editor_plugin_js Error in editor

Hi, since WP 6.0 we get this error on every classic editor post/page edit page:

Failed to load plugin url: https://site/index.php?wp_ips=editor_plugin_js

Seems to be caused by insert php code snippet:

wp-content/plugins/insert-php-code-snippet/direct_call.php: if (array_key_exists(‘wp_ips’, $wp->query_vars) && $wp->query_vars[‘wp_ips’] == ‘editor_plugin_js’) {
wp-content/plugins/insert-php-code-snippet/add_shortcode_tynimce.php: $plugin_array[‘xyz_ips_buttons’] = get_site_url() . ‘/index.php?wp_ips=editor_plugin_js’;
wp-content/plugins/insert-php-code-snippet/add_shortcode_tynimce.php: $plugin_array[$this->buttonName] =get_site_url() . ‘/index.php?wp_ips=editor_plugin_js’;

Browser reports it as content type mismatch:

Refused to execute script from ‘https://site/?wp_ips=editor_plugin_js&wp-mce-49110-20201110’ because its MIME type (‘text/html’) is not executable, and strict MIME type checking is enabled.