NPE when trying to login with two browsers

Reproduction Path:

1) open cms.demo.test.onehippo.com in firefox
2) login
3) goto channelmanager
4) open English Website channel
5) open cms.demo.test.onehippo.com in chrome

Result:

An error has occurred, sorry for that.

java.lang.NullPointerException: null
Failed to instantiate plugin class 'org.hippoecm.frontend.plugins.login.RememberMeLoginPlugin' for wicket id 'service.root' in plugin 'home.cluster.login.plugin.loginPage' (JcrPluginConfig:/hippo:configuration/hippo:frontend/login/login/loginPage)