Paypal Button warnings

[rahul_swami]

I have checked my site buttons, it redirects me at latest payment page. 

But still daily i see warnings at my paypal login. I dont know what is wrong.

Can any body help me?

[MTS_Nacho]

@rahul_swami For your PayPal account, I can only see one instance of incorrect WPS variables sent to us, on the 23rd of February.

For this particular attempt, your integration sent us:

amount=NaN

Please make sure this is corrected (but again, I can't find any other incorrect attempts since that date, so perhaps it was an isolated occurrence).