ProQuest will be taking up to an eight-hour maintenance window beginning Saturday, January 15 at 11 p.m. (AST) to upgrade infrastructure, enhance security, and maintain reliability on ProQuest products.
During this period, most ProQuest products and databases will be temporarily unavailable. The maintenance should be complete by 7 a.m. (AST) on Sunday, January 16. The vendor apologizes for any inconvenience.
More details here: https://status.proquest.com/notices/71