diff --git a/check_process b/check_process
index f8bbf06..6ea04f6 100644
--- a/check_process
+++ b/check_process
@@ -20,3 +20,16 @@
         fail_download_source=0
         port_already_use=1  (5050)
         final_path_already_use=0
+;;; Levels
+    Level 1=auto
+    Level 2=auto
+    Level 3=auto
+	# The app is single-user and does not support LDAP. It is therefore protected behind SSO.
+    Level 4=1
+	# See https://github.com/YunoHost/package_linter/issues/15
+    Level 5=1
+    Level 6=auto
+    Level 7=auto
+    Level 8=0
+    Level 9=0
+    Level 10=0
diff --git a/scripts/remove b/scripts/remove
index 475ba83..88b5d46 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,5 +1,6 @@
 #!/bin/bash
-	#set -eu
+	
+	set -u
 	app=$YNH_APP_INSTANCE_NAME
 
 # Source app helpers
diff --git a/scripts/restore b/scripts/restore
index 3e2a516..d8debe6 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -1,4 +1,6 @@
 #!/bin/bash
+
+	set -eu
 	app=$YNH_APP_INSTANCE_NAME
 
 # Source app helpers
diff --git a/scripts/upgrade b/scripts/upgrade
index b359c6b..167851e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -1,4 +1,6 @@
 #!/bin/bash
+
+	set -eu
 	app=$YNH_APP_INSTANCE_NAME
 	source="https://github.com/CouchPotato/CouchPotatoServer"