Fixed some bugs

server/src/VirtualServer.h

@@ -124,6 +124,7 @@ namespace ts {
             }
 
             inline ServerSlotUsageReport& operator+=(const ServerSlotUsageReport& other) {
+                this->server_count += other.server_count;
                 this->max_clients += other.max_clients;
                 this->reserved_clients += other.reserved_clients;
                 this->clients_teamspeak += other.clients_teamspeak;