Hi,
Please open a support thread before leaving a bad review, and if you must leave a bad review, please elaborate on what didn’t work.
Leaving a one star review like that with no details on how it doesn’t work doesn’t give me a lot to work with in terms of how to improve the plugin.
Most likely it was a server issue or plugin conflict, but it’s impossible to know without further info. If you still need help with this issue, please open a support thread.