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Yes sir, the button still not working/responsive

These are the plugins, one of these might also causing conflict with the menu plugin,

Admin Menu Editor
Advanced Custom Fields PRO
Akismet Anti-spam: Spam Protection
All in One SEO
Custom Post Type UI
Disable Emojis (GDPR friendly)
Duplicate Page
Easy Maps Block
Easy WP SMTP
Extend Link
Feed Them Social
Gravity Forms
Wordfence Security
WP Go Maps Block
WP-Optimize – Clean, Compress, Cache

And I think it’s a customized theme.