Hi Mariann,
no errors in log, I intalled the plugin 'Silhouette Web Solutions PayPal Adaptive Payments'.

i login as a customer, I add the product in basket, next checkout, next billing address, next shipping address, next 'SELECT SHIPPING METHOD' (I have one choice; the plugin Silhouette Web Solutions PayPal Adaptive ), next I'm in the PAYMENT INFO page, this message is displayed "You will be redirected to PayPal site to complete the order.",

I click next button, i'm not redirected to paypal page, but the 'CONFIRM YOUR ORDER' page displayed and , I click confirm button and i'm in thank you page.
I check the vendor account and i found the vendor price is correct.

then i check the order status in the administration account, the status is pending.

thanks for help!