Problems over HHVM

Hi, firstly thanks for the great plugin! I’ve used it on a number of sites and it’s always worked flawlessly. We are testing one of our sites over HHVM and have discovered that the plugin stops working. On the front end you simply see the shortcodes and all links are broken. We have tried debugging this but without much luck. Sorry not to be passing on any more useful information than this. Is this something you are aware of?

https://ww.wp.xz.cn/plugins/baw-login-logout-menu/