No, this should not be normal. I assume you get the message „la platine est introuvable“? This means that no player was found. However, you write that your Squeezelite player was recognised by the server, which surprises me.
You could try entering the following in the advanced options of Squeezelite under „Command line options“:
-s <IP-Address> where <IP-Address> should be replaced with the IP address of the server (which is probably 127.0.0.1).