* line 37 of /mod/hvp/db/messages.php: Error thrown
* line 692 of /lib/messagelib.php: call to require()
* line 419 of /lib/messagelib.php: call to message_get_providers_from_file()
* line 623 of /lib/upgradelib.php: call to message_update_providers()
* line 897 of /lib/upgradelib.php: call to upgrade_component_updated()
* line 651 of /lib/upgradelib.php: call to upgrade_plugins_modules()
* line 1937 of /lib/upgradelib.php: call to upgrade_plugins()
* line 719 of /admin/index.php: call to upgrade_noncore()
