My PC is in network 172.23.134.0 and i can ping normally in this network. I don't know if this are being a problemm
You can ping 8.8.8.8 from this network? If so then what is the problem?
I cannot help if you are only going to provide little pieces of information each time you think it may or may not help. Provide a full diagram of your network and all LANs, servers (squid?), smart switches. For example, in that diagram show LAN A is able to ping 8.8.8.8 but not access a website, LAN B cannot ping and so on. Are all 3 LANs different interfaces on pfsense? Show that in the diagram.