Certification: unable to register for exam using PSI
I tried to register for the AD0-E703 magento certification with PSI (https://home.psiexams.com/#/dashboard/compact-dashboard) , but an error message appear each time I try to purchase. Message says "Sorry the request failed. Please try again later", with no more explanations.
I'm based in Paris, France and tried to register in the two Test centers available in the city but I always get this message.
Any help or advice regarding this error and how to register for the exam?