Bricklink is currently down due to a ransomware attack.
The site was taken off line shortly after numerous breaches which concluded with a bricklink forum post by a hacked account indicating all accounts had been hacked and the hackers would begin purging store records (orders/inventory etc) for every hour that passes until payment of €50,000 in bitcoin is made.
If you use the same username/password for other sites, probably wise to change it.....