First, it is apparent you have NOT read the Welcome Topic…
As you probably are unable to edit posts yet, I have fixed your posted code for proper viewing this time.
Secondly, we are here to help you learn how Blynk works… we generally do NOT troubleshoot your code or teach you how to program.
Thirdly, you need to study how to use timers instead of trying to run commands or functions directly in the
void loop() as they run hundreds of times a second that way and can cause connection problems.
Read through the Help Center, Documentation and check out the Sketch Builder for your best chance at learning how Blynk works.
All the links are at the top right of this page (scroll up if you don’t see them)