Authentication block after migrating to Live!?

Hello! In the migration tutorial, there is the step to delete the value in wpstg_is_staging_site. Where is this file located? i used PHP my admin in cpanel and only had 5 wpstg files in my database, none are called wpstg_is_staging_site. One is called cmplz_cookiebanner, 2 are called wpstg_imagify and 2 others wpst_comment… I use newest WordPress… Any help how to get rid of the authentication screen on my site?

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