One sketch LCD and IR Sensor, One sketch ESP8266wifi

[PeteKnight]

You should read this:

Understanding hardware and software serial ports

I’m still seeing frequent posts, mostly from new members of the forum, who are confused about how to add WiFi or Bluetooth connectivity to devices like the Arduino Uno, Nano or Mega, or from people who are trying to use serial communication with some other type of peripheral. I thought I’d try to put together some guidance on how to do this properly. First things first though – if you’re using a device such as an Uno, Nano or Mega that doesn’t have built-in internet connectivity then you shoul…

Is there any reason why you’re making life difficult for yourself and using an UNO + ESP8266 board (presumably an ESP-01) ?

You’d be far better using a NodeMCU or ESP32 for this.
But, if you so go down that route then don’t use the WiFi/Blynk connection/reconnection routines that you’ve used in your ESP-01 sketch.

Pete.