These errors are caused by the Laundry Master theme:
The theme’s demo site (https://www.luzukdemo.com/demo/laundry-master/) also appears to have several errors.
I recommend asking for help at https://wordpress.org/support/theme/laundry-master/ so the theme’s developers and support community can help you with this.
You may also have a plugin or theme conflict.
Please attempt to disable all plugins, and use one of the default (Twenty*) themes. If the problem goes away, enable the plugins one by one to identify the source of your troubles.
If you can install plugins, install and activate Health Check: https://wordpress.org/plugins/health-check/
It will add a new feature under Tools > Site Health.
On its Troubleshooting tab, you can Enable Troubleshooting Mode. This mode will disable all plugins, switch to a standard WordPress theme (if available), allow you to turn your plugins on and off, and switch between themes, without affecting normal visitors to your site. Following these steps allows you to test for various compatibility issues.
There’s a more detailed description about how to use the Health Check plugin and its Troubleshooting Mode at https://make.wordpress.org/support/handbook/appendix/troubleshooting-using-the-health-check/.
Thank You! I Solved this issue
You’re welcome! Glad you manage to solve it.