The message about the number of hyperlinks occurs because you aren’t surrounding your code with triple backticks.
@Dave1829 has provided the information about how to do this, and it was in the information that you deleted from your post before making your initial post - which you seem to have ignored.
There are dozens of examples of people doing the same thing. Searching and reading will help, as members of the community aren’t going to build your project for you.
You will probably find that your choice of hardware will cause you problems, as the Ethernet shields are notorious for being unreliable. You may be lucky and get a good one, but for every reliable shield there seem to be dozens of unreliable ones. This isn’t a Blynk thing, it’s just a problem with the design of the shield and the electrical and timing tolerances.
The issue is usually around getting the shield to boot-up correctly when the power is re-applied, but the shields are also very picky about the type of Ethernet switch they can be connected to.
Read this for more info about hardware choices…
Pete.