EBSCOhost eBooks may be down for maintenance from January 3rd to January 5th, 2022.
Per EBSCO:
Starting the evening of January 3rd, 2022 (EST), EBSCO will be performing an upgrade to systems which will affect the speed with which newly acquired content is made available to your library on the EBSCOhost platform. Maintenance is expected to complete on January 5th, 2022.