Hello Jude Ward,
Thanks for reaching out to us. We appreciate your co-operation, our development team has fixed the issue and will release it with the next update.
Thanks
Public
Ticket #104497
Plugin uses is_ajax which has been deprecated since version 6.1.0. Needs to be replace with wp_doing_ajax
Jude Ward
Your plugin uses is_ajax which has been deprecated since version 6.1.0. This needs to be replace with wp_doing_ajax
As far as I can see, your plugin uses this in the functions file on line 1916
This issue is throwing a lot of errors up and causing a huge amount of strain on our server. Please update your plugin as soon as possible, I can see other people have also reported this problem and it needs to be fixed!