I agree. At least one of my hosts shows no problem:
21/08/2018 5:59:49 PM | | Fetching configuration file from https://bam.boincstats.com/get_project_config.php
21/08/2018 5:59:54 PM | | Contacting account manager at https://bam.boincstats.com/
21/08/2018 5:59:55 PM | | Account manager: BAM! User: 3772, Contact
21/08/2018 5:59:55 PM | | Account manager: BAM! Host: 744212
21/08/2018 5:59:55 PM | | Account manager: Number of BAM! connections for this host: 90
21/08/2018 5:59:55 PM | | Account manager: Dear founder of team BOINC Synergy, your team is invited to participate in the team challenges (http://boincstats.com/en/bam/teamChallenge/)
21/08/2018 5:59:55 PM | | Account manager contact succeeded
But most of my hosts show this for the past few days:
8/21/2018 5:27:20 PM | | Fetching configuration file from https://bam.boincstats.com/get_project_config.php
8/21/2018 5:27:23 PM | | Contacting account manager at https://bam.boincstats.com/
8/21/2018 5:27:24 PM | BOINCstatsBAM! | Message from account manager: Start tag expected, '<' not found.
I tried detaching from BAM! with one of these hosts and after trying to re-attach to BAM! the dialog box says all good but the event log shows the not found message and under the Tools menu I see "Use account manager" instead of "Synchronize with BOINCstatsBAM!"