Okay, the simplest method of sending data from one device to another is to use Automations. There are some restrictions to this method, but if it fits your use-case then you should use that method.
Otherwise you can use the HTTP(S) API to simulate the use of Legacy Bridge, or you could use Node-Red, but this seems like an overkill for your project.
You also need to make some changes to your code, inserting the Blynk Template ID and Template Name from Device > Device Into at the very top of each sketch.
Pete.