I have similar issue, but I don't remember/know if this was fine before I added exclusions. Now it throws errors even if you delete all exclusions, shutdown activity-log-manager and start it again.
$ activity-log-manager ** (activity-log-manager:3069): WARNING **: Couldn't register with accessibility bus: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed ** (activity-log-manager:3069): CRITICAL **: gee_abstract_map_set: assertion 'self != NULL' failed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1264666 Title: Activity Log Manager crashes on "Files & Applications" tab To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/activity-log-manager/+bug/1264666/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs