Debugging message: add_to_log() has been deprecated, please rewrite your code to the new events API

add_to_log() has been deprecated, please rewrite your code to the new events API

    line 48 of \lib\deprecatedlib.php: call to debugging()

    line 159 of \blocks\mhaairs\lib.php: call to add_to_log()

    line 92 of \blocks\mhaairs\lib.php: call to block_mhaairs_connect::request()

    line 45 of \blocks\mhaairs\settingslib.php: call to block_mhaairs_connect::get_services()

    line 75 of \blocks\mhaairs\settingslib.php: call to admin_setting_configmulticheckbox_mhaairs->load_choices()

    line 1497 of \lib\adminlib.php: call to admin_setting_configmulticheckbox_mhaairs->output_html()

    line 125 of \admin\settings.php: call to admin_settingpage->output_html()