diff --git a/debian/movai-flow.postinst b/debian/movai-flow.postinst
index 2aa5794..28358eb 100644
--- a/debian/movai-flow.postinst
+++ b/debian/movai-flow.postinst
@@ -102,7 +102,8 @@ if [ "$1" == "configure" ]; then
     echo "NETWORK_MODE=" > $CONFIG_PATH/config.env
 
     mkdir -p $APP_PATH/{logs,shared,userspace,models_database,config}
-    chown 1000:1000 $APP_PATH/{logs,shared,userspace,models_database,config} -R
+    chown 1000:1000 $APP_PATH/{logs,shared,userspace,models_database} -R
+    chmod 777 $APP_PATH/config -R
 
     cp  $CONFIG_PATH/config.env $APP_PATH/config/
 
diff --git a/debian/movai-flow.postrm b/debian/movai-flow.postrm
index 0b457a8..255f21e 100644
--- a/debian/movai-flow.postrm
+++ b/debian/movai-flow.postrm
@@ -41,7 +41,7 @@ if [ "$1" = "purge" ]; then
         $DOCKER_BIN volume rm $volumes 2>/dev/null
     fi
 
-    images=$($DOCKER_BIN images | awk '$1 ~ "mov.ai" { print $3 }')
+    images=$($DOCKER_BIN images | awk '$1 ~ "mov.ai/ce" { print $3 }')
     if [ -n "$images" ]
     then
         Output "removing docker images"
diff --git a/scripts/movai-flow-launch b/scripts/movai-flow-launch
index 8e81654..e03b0f1 100755
--- a/scripts/movai-flow-launch
+++ b/scripts/movai-flow-launch
@@ -150,9 +150,13 @@ user_documents_path=$(xdg-user-dir DOCUMENTS)
 Output "Creating user and models folder"
 if [ ! -e "${user_documents_path}/MovaiFlow" ]; then
   mkdir -p "${user_documents_path}/MovaiFlow"
-  ln -sf "$APP_PATH/userspace" "${user_documents_path}/MovaiFlow"
-  ln -sf "$APP_PATH/models_database" "${user_documents_path}/MovaiFlow"
-  Output "User and models folder ${user_documents_path}/MovaiFlow"
+  Output "User and models folder created in ${user_documents_path}/MovaiFlow"
+fi
+if [ ! -e "${user_documents_path}/MovaiFlow/userspace" ]; then
+  ln -sf "$APP_PATH/userspace" "${user_documents_path}/MovaiFlow/userspace"
+fi
+if [ ! -e "${user_documents_path}/MovaiFlow/models_database" ]; then
+  ln -sf "$APP_PATH/models_database" "${user_documents_path}/MovaiFlow/models_database"
 fi
 
 Output "Starting web application"
diff --git a/scripts/movai-flow-rviz b/scripts/movai-flow-rviz
index 6464466..fa590ac 100755
--- a/scripts/movai-flow-rviz
+++ b/scripts/movai-flow-rviz
@@ -56,6 +56,8 @@ fi
 
 # Check NVIDIA
 Architecture="$(uname -m)"
+HaveNvidia=0
+HaveDockerNvidia=0
 if [ "$Architecture" = "x86_64" ]; then
   # Is there a Nvidia card present (possible HW enhanced graphical rendering)
   [ "$(echo /sys/module/nvidia/drivers/pci:nvidia/*:*:*.*)" != "/sys/module/nvidia/drivers/pci:nvidia/*:*:*.*" ] && HaveNvidia=1
diff --git a/scripts/movai-flow-simulator b/scripts/movai-flow-simulator
index c28570d..3fb6569 100755
--- a/scripts/movai-flow-simulator
+++ b/scripts/movai-flow-simulator
@@ -62,6 +62,8 @@ fi
 
 # Check NVIDIA
 Architecture="$(uname -m)"
+HaveNvidia=0
+HaveDockerNvidia=0
 if [ "$Architecture" = "x86_64" ]; then
   # Is there a Nvidia card present (possible HW enhanced graphical rendering)
   [ "$(echo /sys/module/nvidia/drivers/pci:nvidia/*:*:*.*)" != "/sys/module/nvidia/drivers/pci:nvidia/*:*:*.*" ] && HaveNvidia=1