Just downloaded 5.o and my E-bay functions go crazy

Been using Avast for a few months when notified my subscription was expiring. Downloaded new free edition and now on e-bay when I go to “my e-bay” to check on things, an error occurs every time. Can’t get there from here. How do I reset things so that all of E-bay works? I’ve uninstalled Avast, yet now my within e-bay commands like in “my e-bay” still don’t work…what did the new version change and how do I fix it?

Since the same problem adheres…Are you sure it’s really caused by Avast!??
BTW, is Avast! or you Browser notifying that an error occured? At the same time, is anything recorded in the loggings of avast?