Hello,
Sorry for the inconvenience caused.
Firstly, we have noticed that your PHP version is not up to the standard version 7.4. So, kindly please make sure to have the standard PHP version running on your Site. You can ask your Hosting Provider to do that for you.
Secondly, regarding the mentioned concern the WoodMart Core plugin wasn’t updated to the latest version on your Site (which is 1.0.36), so we have done that now.
But we are seeing a lot of third party Plugins activated on your Site. So, could you please once try deactivating all the third party Plugins on your Site, remaining the Theme required ones activated. If the issue gets resolved, then reactivate them one by one to see which Plugin is causing the issue. If this doesn’t work for you then once also, try to activate the Parent Theme on your Site if you are using Child Theme on your Site.
If somehow the issue still persists, then please take complete Backup of your Site first, then provide us the permission to completely debug your Site which includes deactivating all the third party Plugins and removal of on-Site Customization changes too, so that we can thoroughly check this issue on your Site and assist you accordingly.
Best Regards.