Hi,
We have a prestashop website since 2008, we are under 1.5.2
We use OnePageCheckout method with OPC Module
Some clients argue that they couldn't see "payment method" at checkout and they couldn't pay. "error : no payment method installed"
We can't reproduce this bug, as every test orders works fine...
You will be hire to discover how this bug appear by passing every test orders...
thank you