diff --git a/paramecio/cromosoma/extrafields/datefield.py b/paramecio/cromosoma/extrafields/datefield.py
index 0467211..da52ec1 100644
--- a/paramecio/cromosoma/extrafields/datefield.py
+++ b/paramecio/cromosoma/extrafields/datefield.py
@@ -16,8 +16,10 @@ class DateField(PhangoField):
             value=datetime.local_to_gmt(value)
         
         elif not datetime.obtain_timestamp(value, True):
-        
-            return False
+
+            self.error=True
+            self.txt_error='Date format invalid'        
+            return ''
         
         if value==False:
             
diff --git a/paramecio/cromosoma/usermodel.py b/paramecio/cromosoma/usermodel.py
index ace28c4..b49081d 100644
--- a/paramecio/cromosoma/usermodel.py
+++ b/paramecio/cromosoma/usermodel.py
@@ -114,35 +114,29 @@ class UserModel(WebModel):
             
             if self.username_field in dict_values:
             
-                self.conditions=['WHERE (username=%s', [dict_values[self.username_field]]]
+                self.conditions=['WHERE username=%s AND '+self.name_field_id+'!=%s', [dict_values[self.username_field], get_id]]
+                
+            if self.select_count()>0:
+                
+                self.fields[self.username_field].error=True
+                self.fields[self.username_field].txt_error=I18n.lang('common', 'error_username_exists', 'Error: username exists in database')
+                
+                error+=1
 
             
             if self.email_field in dict_values:
             
-                if len(self.conditions[1])>0:
-            
-                    self.conditions[0]+=' OR email=%s)'
-                else:
-                    self.conditions[0]='WHERE (email=%s)'
-                    self.conditions[1]=[]
-            
-                self.conditions[1].append(dict_values[self.email_field])
-            
-            if get_id>0:
+                self.conditions=['WHERE email=%s AND '+self.name_field_id+'!=%s', [dict_values[self.email_field], get_id]]            
                 
-                self.conditions[0]+=' AND '+self.name_field_id+'!=%s'
-                self.conditions[1].append(get_id)
-            
-            
             if self.select_count()>0:
                 
                 self.fields[self.username_field].error=True
-                self.fields[self.username_field].txt_error=I18n.lang('common', 'error_username_or_password_exists', 'Error: username or email exists in database')
+                self.fields[self.username_field].txt_error=I18n.lang('common', 'error_email_exists', 'Error: email exists in database')
                 
                 error+=1
             
             self.conditions=original_conditions
-
+        
         if error>0:
             self.query_error+='Error:if is not expected, please, check that you disabled the special checkings of this model'
             return False
diff --git a/paramecio/cromosoma/webmodel.py b/paramecio/cromosoma/webmodel.py
index f8ba927..4556bf7 100644
--- a/paramecio/cromosoma/webmodel.py
+++ b/paramecio/cromosoma/webmodel.py
@@ -421,7 +421,7 @@ class WebModel:
             
         except: 
             self.query_error='Cannot insert the new row'
-
+            print(sys.exc_info()[0])
             return False
         
         c=len(values)
@@ -1070,7 +1070,12 @@ class WebModel:
                                 #Error, need this fields.
                                 self.num_errors+=1
                                 
-                                self.fields_errors[k].append("Error: "+v.label+" field required")
+                                if self.fields[k].txt_error=='':
+                                
+                                    self.fields_errors[k].append("Error: "+v.label+" field required")
+
+                                else:
+                                    self.fields_errors[k].append(self.fields[k].txt_error)                                    
                                 
                                 error=True