Image Id's is not loading into json data so image title and description is not showing

[udayankoliya]

Description of Problem

I am creating new website from my existing one.On both site latest version of SLB plugin installed version 2.9.3 From that on live site see this screenshot its working fine where image ids is loaded so image title and description are showing but in development site id's not loading see this scrrenshot so title and description is not showing before1 month It was working fine can you please help to solve this issue. (Clearly describe the issue you are experiencing here, and fill in the necessary details below)

Details

https://wordpress-825609-3787509.cloudwaysapps.com/wedding-invitations/wedding-invitations-flat/ - where its not working https://soon2be.ie/wedding-invitations/ - here its working

• URL of Page exhibiting problem:
• Browser(s) exhibiting problem (Firefox, Chrome, etc.):
• Version of SLB Installed: 2.9.3
• Other plugins installed: