They have given below code where client id is mentioned (which is not working):

<script
src=”https://www.paypal.com/sdk/js?client-id=AQPOwrasaOyHlSuC32w3BVMPJ2fdXlLWP_0AodnI1HIoF32E1ebOuJPiRHxZCSOpD-bgx1_lost18_GN&components=messages”
data-namespace=”PayPalSDK”>
</script>

I have used developer client-id (which is working):

<script
src=”https://www.paypal.com/sdk/js?client-id=AbfQc–tMazKIpSHpjGId3W6JVWUu4Mj0tfXKi8yDyW54Nbfw5WY4KM9NKJCblN6VGtp06F8KC9PqC46&components=messages”
data-namespace=”PayPalSDK”>
</script>

So you can show this URL and ask them to check why its not working

 

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