diff --git a/ast/error.go b/ast/error.go
index 00a04468e..73b7af0b8 100644
--- a/ast/error.go
+++ b/ast/error.go
@@ -79,7 +79,7 @@ func (self SyntaxError) description() string {
 
     /* check for empty source */
     if self.Src == "" {
-        return fmt.Sprintf("no sources available: %#v", self)
+        return fmt.Sprintf("no sources available, the input json is empty: %#v", self)
     }
 
     /* prevent slicing before the beginning */
diff --git a/internal/decoder/errors/errors.go b/internal/decoder/errors/errors.go
index ae59ce169..9f05e8b6a 100644
--- a/internal/decoder/errors/errors.go
+++ b/internal/decoder/errors/errors.go
@@ -46,7 +46,7 @@ func (self SyntaxError) Description() string {
 func (self SyntaxError) description() string {
     /* check for empty source */
     if self.Src == "" {
-        return fmt.Sprintf("no sources available: %#v", self)
+        return fmt.Sprintf("no sources available, the input json is empty: %#v", self)
     }
 
     p, x, q, y := calcBounds(len(self.Src), self.Pos)
diff --git a/internal/encoder/vars/errors.go b/internal/encoder/vars/errors.go
index 2e7622421..77919c44a 100644
--- a/internal/encoder/vars/errors.go
+++ b/internal/encoder/vars/errors.go
@@ -58,7 +58,7 @@ const (
 func GoPanic(code int, val unsafe.Pointer) {
     switch(code){
     case PanicNilPointerOfNonEmptyString:
-        panic(fmt.Sprintf("val: %#v has nil pointer while its length is not zero!", (*rt.GoString)(val)))
+        panic(fmt.Sprintf("val: %#v has nil pointer while its length is not zero!\nThis is a nil pointer exception (NPE) problem. There might be a data race issue. It is recommended to execute the tests related to the code with the `-race` compile flag to detect the problem.", (*rt.GoString)(val)))
     default:
         panic("encoder error!")
     }