Hello,
Yes, that is right. I need login and password and login URL, if you do not want to provide follow the steps:
1. Make sure you have installed and enabled all the plugins in Appearance > Install plugins. Do not activate Elementor as your site is on WP bakery page builder.
If it does not help, deactivate all the plugins not related to the theme and switch the parent theme, check the issue, If the problem has gone, activate the plugins one by one, checking the issue to detect which one causes the problem.
Best Regards