Hello,
@Mhabub_vegans, Brett has covered the insights. Since you might been followed all the needed action from the HH tracks, it must be related to the search experience version of your Production Label. The Current live search experience version with production label doesn’t having correct configuration which is the cause of error.
Labels is manageable via https://sandbox.yext.com/s/[account_id]/search/experiences/configuration/[exp_name]/labels
Relevant HH track is accessible via
Once you will have appropriate version labeled with Production, the error should get resolved.