J, who works as a medical representative in A Pharmaceuticals, has been struggling with his smartphone for 3 hours. J had finished his lunch early to try and reserve the no-show vaccines. However, both the Naver and Kakao applications on his phone were not working. Even after the server was restored, both maps were full of ‘0’s. He expanded the search area to all of Seoul and renewed the page several times. One hospital popped up, but the 10 shots that were available immediately turned to 0 as he pressed the reservation button. Dispirited, he pressed the notification services in various nearby hospitals, then put down his smartphone

According to industry sources on the 27th,