Logbook of The World® is back in business

The Logbook of The World® site is back online, but the system either has problems, but it is currently overloaded, because login via https://lotw.arrl.org/lotwuser/default I succeeded only after several attempts. This may be due to high traffic, when many users access the server at the same time. Another reason may be inefficient processing of requests or lack of system resources, such as memory and processing power. Congestion can also occur as a result of an attack, such as a DDoS attack.