Pending payment - please wait before shipping? What does this mean? ( New seller )

[eyeronic]

Hi,

I am a new seller and received my first order but paypal says its pending payment. (pending until 21st May)

It also states not to ship yet...?

can someone explain what this means to me, as I have since had other orders fine?

Many Thanks

[Nicolejade]

Did you ever get to the bottom of this?

[kernowlass]

@Nicolejade 

Echeque.