Error using with arduino ISR vector

[alxkos]

Hey, having same problem as with SoftwareSerial.h Both having a problem working with PCINT ISR

NeoSWSerial.cpp.o (symbol from plugin): In function `NeoSWSerial::read()':
(.text+0x0): multiple definition of `__vector_4'
.pio\build\328p\src\main.cpp.o (symbol from plugin):(.text+0x0): first 
defined here

SoftwareSerial.cpp.o (symbol from plugin): In function `SoftwareSerial::read()':
(.text+0x0): multiple definition of `__vector_4'
.pio\build\328p\src\main.cpp.o (symbol from plugin):(.text+0x0): first 
defined here

ISR (PCINT1_vect){ digitalWrite(EN_PIN, HIGH); PCICR = 0; x_stall = 1;}

Any suggestions? Thanks