Subscribe Button Is Not Appearing

Hello, i just need some help because the subscribe button is all of a sudden is not appearing. Yesterday it is there and when we check today the button is gone and only a script is appearing inside the leaky-paywall-paypal-standard-button tag. The script is linked to https://www.limelightmagazine.com.au/wp-content/plugins/leaky-paywall//js/paypal-button.min.js?x48313

Hope you guys can help me.

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