I am also having problem with aliexpress affiliates (portals), I received orders every day, at least it was 2 orders, sometimes many orders like 10, I was dedicating myself to get more orders via aliexpress affiliate link, when now it does I haven't received any orders for 5 days even though the same number of clicks have been made on the links, I believe that Aliexpress is having a problem or even stealing because this happened right at the end of the month, I'm not surprised that tomorrow, the first working day of April, there are new ones orders, if this happens it will be a sign that aliexpress does not count all the orders coming from the links and give us the commission, and this would be fraud.
I hope this happens, because if I continue with zero orders even though I have the same number of clicks on the links, I will be angry and sad, because I was making an investment to attract people to my sites and thus convert traffic into clicks.