EBSCO sent out this system alert this morning:
We have received reports of an issue with eBooks intermittently failing to load in the eBook Viewer and Table of Contents errors. Our engineering teams are currently investigating the issue and we will update this page when more information is available.
I haven’t yet seen it in our “eBook Collection” database from EBSCO. If you do run into any issues, please let me know.
UPDATE (3 PM, March 26): EBSCO reports this problem is now resolved.