diff --git a/contract/internal_operations.go b/contract/internal_operations.go
index c8cd2ba20..e88b0f96b 100644
--- a/contract/internal_operations.go
+++ b/contract/internal_operations.go
@@ -5,7 +5,6 @@ import (
 	"log"
 	"sync"
 
-	"github.com/aergoio/aergo/v2/types"
 	"github.com/aergoio/aergo/v2/internal/enc/base58"
 )
 
@@ -28,8 +27,7 @@ type InternalCall struct {
 
 type InternalOperations struct {
 	TxHash    string   `json:"txhash"`
-	Contract  string   `json:"contract"`
-	Operations []InternalOperation `json:"operations"`
+	Call      InternalCall `json:"call"`
 }
 
 var (
@@ -142,6 +140,20 @@ func logInternalCall(ctx *vmContext, contract string, function string, args stri
 	return nil
 }
 
+func logFirstCall(ctx *vmContext, contract string, function string, args string) {
+	ctx.internalOpsCall.Contract = contract
+	ctx.internalOpsCall.Function = function
+	ctx.internalOpsCall.Args = args
+}
+
+func logCall(ctx *vmContext, contract string, function string, args string) {
+	if ctx.internalOpsCall.Contract == "" {
+		logFirstCall(ctx, contract, function, args)
+	} else {
+		logInternalCall(ctx, contract, function, args)
+	}
+}
+
 func getInternalOperations(ctx *vmContext) string {
 	if doNotLog(ctx) {
 		return ""
@@ -155,8 +167,7 @@ func getInternalOperations(ctx *vmContext) string {
 
 	internalOps := InternalOperations{
 		TxHash: base58.Encode(ctx.txHash),
-		Contract: types.EncodeAddress(ctx.curContract.contractId),
-		Operations: ctx.internalOpsCall.Operations,
+		Call: ctx.internalOpsCall,
 	}
 
 	data, err := json.Marshal(internalOps)
diff --git a/contract/vm.go b/contract/vm.go
index 7b45c96fc..8830f17eb 100644
--- a/contract/vm.go
+++ b/contract/vm.go
@@ -418,6 +418,17 @@ func (ce *executor) processArgs() {
 	}
 }
 
+func convertArgs(argsList []interface{}) (string) {
+	if argsList == nil {
+		return ""
+	}
+	args, err := json.Marshal(argsList)
+	if err != nil {
+		return ""
+	}
+	return string(args)
+}
+
 func (ce *executor) getEvents() []*types.Event {
 	if ce == nil || ce.ctx == nil {
 		return nil
@@ -559,11 +570,11 @@ func (ce *executor) call(instLimit C.int, target *LState) (ret C.int) {
 		ce.err = ce.preErr
 		return 0
 	}
+	contract := types.EncodeAddress(ce.ctx.curContract.contractId)
 	if ce.isAutoload {
 		if loaded := vmAutoload(ce.L, ce.fname); !loaded {
 			if ce.fname != constructor {
-				ce.err = errors.New(fmt.Sprintf("contract autoload failed %s : %s",
-					types.EncodeAddress(ce.ctx.curContract.contractId), ce.fname))
+				ce.err = errors.New(fmt.Sprintf("contract autoload failed %s : %s", contract, ce.fname))
 			}
 			return 0
 		}
@@ -575,10 +586,10 @@ func (ce *executor) call(instLimit C.int, target *LState) (ret C.int) {
 	}
 	ce.processArgs()
 	if ce.err != nil {
-		ctrLgr.Debug().Err(ce.err).Stringer("contract",
-			types.LogAddr(ce.ctx.curContract.contractId)).Msg("invalid argument")
+		ctrLgr.Debug().Err(ce.err).Str("contract", contract).Msg("invalid argument")
 		return 0
 	}
+	logCall(ce.ctx, contract, ce.fname, convertArgs(ce.ci.Args))
 	ce.setCountHook(instLimit)
 	nRet := C.int(0)
 	cErrMsg := C.vm_pcall(ce.L, ce.numArgs, &nRet)
@@ -594,10 +605,7 @@ func (ce *executor) call(instLimit C.int, target *LState) (ret C.int) {
 				ce.err = errors.New(errMsg)
 			}
 		}
-		ctrLgr.Debug().Err(ce.err).Stringer(
-			"contract",
-			types.LogAddr(ce.ctx.curContract.contractId),
-		).Msg("contract is failed")
+		ctrLgr.Debug().Err(ce.err).Str("contract", contract).Msg("contract is failed")
 		return 0
 	}
 	if target == nil {
@@ -612,15 +620,11 @@ func (ce *executor) call(instLimit C.int, target *LState) (ret C.int) {
 		if c2ErrMsg := C.vm_copy_result(ce.L, target, nRet); c2ErrMsg != nil {
 			errMsg := C.GoString(c2ErrMsg)
 			ce.err = errors.New(errMsg)
-			ctrLgr.Debug().Err(ce.err).Stringer(
-				"contract",
-				types.LogAddr(ce.ctx.curContract.contractId),
-			).Msg("failed to move results")
+			ctrLgr.Debug().Err(ce.err).Str("contract", contract).Msg("failed to move results")
 		}
 	}
 	if ce.ctx.traceFile != nil {
-		address := types.EncodeAddress(ce.ctx.curContract.contractId)
-		codeFile := fmt.Sprintf("%s%s%s.code", os.TempDir(), string(os.PathSeparator), address)
+		codeFile := fmt.Sprintf("%s%s%s.code", os.TempDir(), string(os.PathSeparator), contract)
 		if _, err := os.Stat(codeFile); os.IsNotExist(err) {
 			f, err := os.OpenFile(codeFile, os.O_WRONLY|os.O_CREATE, 0644)
 			if err == nil {
@@ -629,7 +633,7 @@ func (ce *executor) call(instLimit C.int, target *LState) (ret C.int) {
 			}
 		}
 		_, _ = ce.ctx.traceFile.WriteString(fmt.Sprintf("contract %s used fee: %s\n",
-			address, ce.ctx.usedFee().String()))
+			contract, ce.ctx.usedFee().String()))
 	}
 	return nRet
 }
diff --git a/contract/vm_callback.go b/contract/vm_callback.go
index 5cd0c1039..634f8b5b2 100644
--- a/contract/vm_callback.go
+++ b/contract/vm_callback.go
@@ -262,8 +262,6 @@ func luaCallContract(L *LState, service C.int, contractId *C.char, fname *C.char
 		return -1, C.CString("[Contract.LuaCallContract] invalid arguments: " + err.Error())
 	}
 
-	logInternalCall(ctx, contractAddress, fnameStr, argsStr)
-
 	// get the remaining gas from the parent LState
 	ctx.refreshRemainingGas(L)
 	// create a new executor with the remaining gas on the child LState
@@ -419,8 +417,6 @@ func luaDelegateCallContract(L *LState, service C.int, contractId *C.char,
 		return -1, C.CString("[Contract.LuaDelegateCallContract] invalid arguments: " + err.Error())
 	}
 
-	logInternalCall(ctx, contractIdStr, fnameStr, argsStr)
-
 	// get the remaining gas from the parent LState
 	ctx.refreshRemainingGas(L)
 	// create a new executor with the remaining gas on the child LState
@@ -564,8 +560,6 @@ func luaSendAmount(L *LState, service C.int, contractId *C.char, amount *C.char)
 			return C.CString("[Contract.LuaSendAmount] cannot find contract:" + contractAddress)
 		}
 
-		logInternalCall(ctx, contractAddress, "default", "[]")
-
 		// get the remaining gas from the parent LState
 		ctx.refreshRemainingGas(L)
 		// create a new executor with the remaining gas on the child LState
@@ -1306,8 +1300,6 @@ func luaDeployContract(
 		return -1, C.CString("[Contract.LuaDeployContract]:" + err.Error())
 	}
 
-	logInternalCall(ctx, types.EncodeAddress(newContract.ID()), "constructor", argsStr)
-
 	// get the remaining gas from the parent LState
 	ctx.refreshRemainingGas(L)
 	// create a new executor with the remaining gas on the child LState