diff --git a/files/initrd/opt/arc/boot.sh b/files/initrd/opt/arc/boot.sh
index fdc81c6..1e57f4e 100755
--- a/files/initrd/opt/arc/boot.sh
+++ b/files/initrd/opt/arc/boot.sh
@@ -243,5 +243,9 @@ for T in $(w | grep -v "TTY" | awk -F' ' '{print $2}')
 do
   echo -e "\n\033[1;37mThis interface will not be operational. Wait a few minutes.\033[0m\nUse \033[1;34mhttp://${IPCON}:5000\033[0m or try \033[1;34mhttp://find.synology.com/ \033[0mto find DSM and proceed.\n" >"/dev/${T}" 2>/dev/null || true
 done
+
+# Clear logs for dbgutils addons
+rm -rf "${PART1_PATH}/logs" >/dev/null 2>&1 || true
+
 [ "${KERNELLOAD}" = "kexec" ] && kexec -f -e || poweroff
 exit 0
\ No newline at end of file
diff --git a/files/initrd/opt/arc/include/addons.sh b/files/initrd/opt/arc/include/addons.sh
index 23ee542..5123130 100755
--- a/files/initrd/opt/arc/include/addons.sh
+++ b/files/initrd/opt/arc/include/addons.sh
@@ -3,6 +3,10 @@
 # 1 - Platform
 # 2 - Kernel Version
 function availableAddons() {
+  if [[ -z "${1}" || -z "${2}" ]]; then
+    echo ""
+    return 1
+  fi
   while read -r D; do
     [ ! -f "${D}/manifest.yml" ] && continue
     ADDON=$(basename ${D})
@@ -24,6 +28,9 @@ function availableAddons() {
 # 3 - Kernel Version
 # Return ERROR if not exists
 function checkAddonExist() {
+  if [[ -z "${1}" || -z "${2}" || -z "${3}" ]]; then
+    return 1 # ERROR
+  fi
   # First check generic files
   if [ -f "${ADDONS_PATH}/${1}/all.tgz" ]; then
     return 0 # OK
@@ -39,6 +46,9 @@ function checkAddonExist() {
 # Install Addon into ramdisk image
 # 1 - Addon id
 function installAddon() {
+  if [ -z "${1}" ]; then
+    return 1
+  fi
   ADDON="${1}"
   mkdir -p "${TMP_PATH}/${ADDON}"
   HAS_FILES=0
@@ -66,6 +76,10 @@ function installAddon() {
 # 1 - Addon file path
 # Return name of addon on sucess or empty on error
 function untarAddon() {
+  if [ -z "${1}" ]; then
+    echo ""
+    return 1
+  fi
   rm -rf "${TMP_PATH}/${ADDON:?}"
   mkdir -p "${TMP_PATH}/${ADDON}"
   tar -xaf "${1}" -C "${TMP_PATH}/${ADDON}" || return
diff --git a/files/initrd/opt/arc/include/modules.sh b/files/initrd/opt/arc/include/modules.sh
index 07456a2..1033732 100755
--- a/files/initrd/opt/arc/include/modules.sh
+++ b/files/initrd/opt/arc/include/modules.sh
@@ -6,6 +6,10 @@
 function getAllModules() {
   PLATFORM=${1}
   KVER=${2}
+  if [[ -z "${PLATFORM}" || -z "${KVER}" ]]; then
+    echo ""
+    return 1
+  fi
   # Unzip modules for temporary folder
   rm -rf "${TMP_PATH}/modules"
   mkdir -p "${TMP_PATH}/modules"
@@ -30,6 +34,10 @@ function addToModules() {
   PLATFORM=${1}
   KVER=${2}
   KOFILE=${3}
+  if [[ -z "${PLATFORM}" || -z "${KVER}" || -z "${KOFILE}" ]]; then
+    echo ""
+    return 1
+  fi
   # Unzip modules for temporary folder
   rm -rf "${TMP_PATH}/modules"
   mkdir -p "${TMP_PATH}/modules"
@@ -47,6 +55,10 @@ function delToModules() {
   PLATFORM=${1}
   KVER=${2}
   KONAME=${3}
+  if [[ -z "${PLATFORM}" || -z "${KVER}" || -z "${KOFILE}" ]]; then
+    echo ""
+    return 1
+  fi
   # Unzip modules for temporary folder
   rm -rf "${TMP_PATH}/modules"
   mkdir -p "${TMP_PATH}/modules"
@@ -75,6 +87,10 @@ function getdepends() {
   PLATFORM=${1}
   KVER=${2}
   KONAME=${3}
+  if [[ -z "${PLATFORM}" || -z "${KVER}" || -z "${KOFILE}" ]]; then
+    echo ""
+    return 1
+  fi
   # Unzip modules for temporary folder
   rm -rf "${TMP_PATH}/modules"
   mkdir -p "${TMP_PATH}/modules"