Blynktimer.h Error

Your application is similar to :

Have a look at this and see if you can apply according to your purpose.

Another thing is pin 13 (GPIO13)

#define PUMP_PIN 13   // PUMP RELAY

in your code for NodeMCU or Wemos D1 is actually pin D7 / GPIO13 and I guess you connect the relay to the wrong pin.

#define PIN_D7            13        // Pin D7 mapped to pin GPIO13/RXD2/HMOSI of ESP8266