YAGA / Vanlla 2.8.1

[Sat Mar 16 10:36:54.929641 2019] [php7:notice] [pid 29531] [client 127.0.0.1:56442] PHP Fatal error:  Uncaught ParseError: syntax error, unexpected '===' (T_IS_IDENTICAL), expecting function (T_FUNCTION) or const (T_CONST) in /home/myuser/www/vanilla/applications/yaga/models/class.reactionmodel.php:128\nStack trace:\n#0 [internal function]: Vanilla\\AddonManager->autoload('ReactionModel')\n#1 /home/myuser/www/vanilla/applications/yaga/library/class.yaga.php(86): spl_autoload_call('ReactionModel')\n#2 /home/myuser/www/vanilla/applications/yaga/settings/class.hooks.php(570): Yaga::ReactionModel()\n#3 [internal function]: YagaHooks->DiscussionController_Render_Before(Object(DiscussionController), Array)\n#4 /home/myuser/www/vanilla/library/Garden/EventManager.php(278): call_user_func_array(Array, Array)\n#5 /home/myuser/www/vanilla/library/core/class.pluginmanager.php(808): Garden\\EventManager->fire('DiscussionContr...', Object(DiscussionController), Array)\n#6 /home/myuser/www/vanilla/library/core/class.pluginmanager.php(766): Gdn_PluginManager->callEventHandler(Object(DiscussionController), 'DiscussionContr...', 'render', 'Before')\n#7 /home/myuser/www/vanilla/library/core/class.pluggable.php(207): Gdn_PluginManager->callEventHandlers(Object(DiscussionController), 'DiscussionContr...', 'render', 'Before')\n#8 /home/myuser/www/vanilla/applications/vanilla/controllers/class.discussioncontroller.php(283): Gdn_Pluggable->__call('render', Array)\n#9 /home/myuser/www/vanilla/library/core/class.dispatcher.php(862): DiscussionController->index('1', 'welcome-to-awes...', '')\n#10 /home/myuser/www/vanilla/library/core/class.dispatcher.php(279): Gdn_Dispatcher->dispatchController(Object(Gdn_Request), Array)\n#11 /home/myuser/www/vanilla/index.php(29): Gdn_Dispatcher->dispatch()\n#12 {main}\n  thrown in /home/myuser/www/vanilla/applications/yaga/models/class.reactionmodel.php on line 128, referer: http://localhost/vanilla/