g_key_file_set_value: assertion 'g_key_file_is_group_name (group_name)' failed

OS: ubuntu 20.04, xfce 4.16 Recently, I noticed that push notifications are not being logged, possibly due to a logging issue.

g_key_file_set_value: assertion 'g_key_file_is_group_name (group_name)' failed