FUNCTION_BLOCK FB1

VAR_TEMP

IProcess:INT;

ISum1Etaj:INT;

ISum2Etaj:INT;

Isum:INT;

END_VAR

VAR_INPUT

BZagruzka1EtajI:BOOL;

BZagruzha2EtajI:BOOL;

Mass1Etaj:INT;

Mass2Etaj:INT;

IProcessStateI:INT;

BResetI:BOOL;

END_VAR

VAR_OUTPUT

ISum2FlO:INT;

ISum1FlO:INT;

END_VAR

BEGIN

IF BZagruzka1EtajI THEN

IProcess:=1;

ELSE IF BZagruzha2EtajI THEN

IProcess:=2;

END_IF;

IF IProcessStateI = 1 THEN

IF IProcess = 1 THEN

ISum1Etaj:=ISum1Etaj+Mass1Etaj;

ELSE IF IProcess = 2 THEN

ISum2Etaj:=ISum2Etaj+Mass2Etaj;

END_IF;

ISum:=ISum1Etaj+ISum2Etaj;

IProcess:=0;

END_IF;

IF BResetI THEN

ISum1Etaj:=0;

ISum1Etaj:=0;

ISum:=0;

END_IF;

END_FUNCTION_BLOCK

 There id an error on the last line and have got no idea wgat is wrong there. Can u help me?