diff --git a/wo/cli/plugins/stack.py b/wo/cli/plugins/stack.py
index 67048db..3299759 100644
--- a/wo/cli/plugins/stack.py
+++ b/wo/cli/plugins/stack.py
@@ -796,6 +796,8 @@ class WOStackController(CementBaseController):
             if WOAptGet.is_installed(self, 'nginx-custom'):
                 Log.debug(self, "Add Nginx to apt_packages list")
                 apt_packages = apt_packages + WOVariables.wo_nginx
+            else:
+                Log.info(self, "Nginx is not installed")
 
         # PHP
         if pargs.php:
@@ -822,15 +824,20 @@ class WOStackController(CementBaseController):
             if WOAptGet.is_installed(self, 'redis-server'):
                 Log.debug(self, "Remove apt_packages variable of Redis")
                 apt_packages = apt_packages + ["redis-server"]
+            else:
+                Log.info(self, "Redis is not installed")
+
 
         # MariaDB
         if pargs.mysql:
             if WOAptGet.is_installed(self, 'mariadb-server'):
-                Log.debug(self, "Removing apt_packages variable of MySQL")
+                Log.debug(self, "Add MySQL to apt_packages list")
                 apt_packages = apt_packages + ['mariadb-server',
                                                'mysql-common',
                                                'mariadb-client']
                 packages = packages + ['/etc/mysql', '/var/lib/mysql']
+            else:
+                Log.info(self, "MariaDB is not installed")
 
         # mysqlclient
         if pargs.mysqlclient:
diff --git a/wo/cli/plugins/stack_pref.py b/wo/cli/plugins/stack_pref.py
index 1d05be8..58c5770 100644
--- a/wo/cli/plugins/stack_pref.py
+++ b/wo/cli/plugins/stack_pref.py
@@ -21,9 +21,9 @@ from wo.core.logging import Log
 from wo.core.mysql import WOMysql
 from wo.core.services import WOService
 from wo.core.shellexec import CommandExecutionError, WOShellExec
+from wo.core.sslutils import SSL
 from wo.core.template import WOTemplate
 from wo.core.variables import WOVariables
-from wo.core.sslutils import SSL
 
 
 def pre_pref(self, apt_packages):
@@ -1170,9 +1170,8 @@ def post_pref(self, apt_packages, packages, upgrade=False):
                 Log.info(self, "Updating phpMyAdmin, please wait...")
                 WOShellExec.cmd_exec(
                     self, "/usr/local/bin/composer update "
-                    "--no-plugins --no-scripts "
-                    "-n --no-dev -d "
-                    "/var/www/22222/htdocs/db/pma/ &")
+                    "--no-plugins --no-scripts -n --no-dev -d "
+                    "/var/www/22222/htdocs/db/pma/")
                 WOFileUtils.chown(
                     self, '{0}22222/htdocs/db/pma'
                     .format(WOVariables.wo_webroot),
@@ -1189,12 +1188,11 @@ def post_pref(self, apt_packages, packages, upgrade=False):
                             .format(WOVariables.wo_webroot))
             if not os.path.isfile('/var/www/22222/htdocs/cache/redis/'
                                   'phpRedisAdmin/composer.lock'):
-                WOShellExec.cmd_exec(self, "/usr/local/bin/composer "
-                                     "create-project --no-plugins "
-                                     "--no-scripts -n -s dev "
-                                     "erik-dubbelboer/php-redis-admin "
-                                     "/var/www/22222/htdocs/cache"
-                                     "/redis/phpRedisAdmin &")
+                WOShellExec.cmd_exec(
+                    self, "/usr/local/bin/composer "
+                    "create-project --no-plugins --no-scripts -n -s dev "
+                    "erik-dubbelboer/php-redis-admin "
+                    "/var/www/22222/htdocs/cache/redis/phpRedisAdmin")
             WOFileUtils.chown(self, '{0}22222/htdocs'
                               .format(WOVariables.wo_webroot),
                               'www-data',