[After running /join <server name> command the server start up but does not automatically send the user to it.]

Title pretty much says it all. Upon trying to join an offline server, attempting to start it up with /join <server> the user gets a message that says they will be sent to it automatically once it is started, However that does not happen, the server still starts, but the user is not sent to it.

[server running in offline/insecure mode]

I looked in the latest.log file on my MineHut server and found this

 

[16:17:31] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
[16:17:31] [Server thread/WARN]: The server will make no attempt to authenticate usernames. Beware.
[16:17:31] [Server thread/WARN]: Whilst this makes it possible to use BungeeCord, unless access to your server is properly restricted, it also opens up the ability for hackers to connect with any username they choose.
[16:17:31] [Server thread/WARN]: Please see http://www.spigotmc.org/wiki/firewall-guide/ for further information.
[16:17:31] [Server thread/WARN]: To change this, set "online-mode" to "true" in the server.properties file.

 

do minehut servers run in offline mode by default if so is there any way to change this