diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 2b5d038..8b284be 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -9,8 +9,12 @@
         <item quantity="one">digit</item>
         <item quantity="other">digits</item>
     </plurals>
+    <plurals name="error_prop">
+        <item quantity="one">property</item>
+        <item quantity="other">properties</item>
+    </plurals>
     <string name="error_invalid_dtmf">Invalid DTMF: <xliff:g id="type">%1$s</xliff:g></string>
-    <string name="error_invalid_field">Missing or invalid fields data.</string>
+    <string name="error_invalid_field">Missing or invalid data.</string>
     <string name="error_invalid_size">Invalid: <xliff:g id="size">%1$d</xliff:g> <xliff:g id="type">%2$s</xliff:g><xliff:g id="min">%3$s</xliff:g> required</string>
     <string name="error_invalid">Invalid</string>
     <string name="error_minimum">" minimum"</string>