Hi,
Thanks for using our plugin!
Could you please let us know which plugin you’re using free or pro, If you’re using the pro plugin only then kindly install the free version too, then it will work.
If you’re using the free version then kindly delete the plugin once from your WordPress and then freshly download the plugin and install and activate the plugin if further any concerns then do let us know.
Hopefully, this will resolve your concern.
Regards,