diff --git a/application/Espo/Core/Formula/Functions/DatetimeGroup/DateType.php b/application/Espo/Core/Formula/Functions/DatetimeGroup/DateType.php
index ab4975b763..cff6cb49e5 100644
--- a/application/Espo/Core/Formula/Functions/DatetimeGroup/DateType.php
+++ b/application/Espo/Core/Formula/Functions/DatetimeGroup/DateType.php
@@ -27,7 +27,7 @@
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
  ************************************************************************/
 
-namespace Espo\Core\Formula\Functions\DateTimeGroup;
+namespace Espo\Core\Formula\Functions\DatetimeGroup;
 
 use Espo\Core\Di;
 
diff --git a/application/Espo/Core/Formula/Functions/DatetimeGroup/DayOfWeekType.php b/application/Espo/Core/Formula/Functions/DatetimeGroup/DayOfWeekType.php
index e0f5a30524..7b8d81c9ab 100644
--- a/application/Espo/Core/Formula/Functions/DatetimeGroup/DayOfWeekType.php
+++ b/application/Espo/Core/Formula/Functions/DatetimeGroup/DayOfWeekType.php
@@ -27,7 +27,7 @@
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
  ************************************************************************/
 
-namespace Espo\Core\Formula\Functions\DateTimeGroup;
+namespace Espo\Core\Formula\Functions\DatetimeGroup;
 
 use Espo\Core\Di;
 
diff --git a/application/Espo/Core/Formula/Functions/DatetimeGroup/FormatType.php b/application/Espo/Core/Formula/Functions/DatetimeGroup/FormatType.php
index 4da511f712..36206d3276 100644
--- a/application/Espo/Core/Formula/Functions/DatetimeGroup/FormatType.php
+++ b/application/Espo/Core/Formula/Functions/DatetimeGroup/FormatType.php
@@ -27,7 +27,7 @@
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
  ************************************************************************/
 
-namespace Espo\Core\Formula\Functions\DateTimeGroup;
+namespace Espo\Core\Formula\Functions\DatetimeGroup;
 
 use Espo\Core\Di;
 
diff --git a/application/Espo/Core/Formula/Functions/DatetimeGroup/HourType.php b/application/Espo/Core/Formula/Functions/DatetimeGroup/HourType.php
index a55dbdf437..c15dd43c86 100644
--- a/application/Espo/Core/Formula/Functions/DatetimeGroup/HourType.php
+++ b/application/Espo/Core/Formula/Functions/DatetimeGroup/HourType.php
@@ -27,7 +27,7 @@
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
  ************************************************************************/
 
-namespace Espo\Core\Formula\Functions\DateTimeGroup;
+namespace Espo\Core\Formula\Functions\DatetimeGroup;
 
 use Espo\Core\Di;
 
diff --git a/application/Espo/Core/Formula/Functions/DatetimeGroup/MinuteType.php b/application/Espo/Core/Formula/Functions/DatetimeGroup/MinuteType.php
index 497f9b8a4a..d45c6cc3ac 100644
--- a/application/Espo/Core/Formula/Functions/DatetimeGroup/MinuteType.php
+++ b/application/Espo/Core/Formula/Functions/DatetimeGroup/MinuteType.php
@@ -27,7 +27,7 @@
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
  ************************************************************************/
 
-namespace Espo\Core\Formula\Functions\DateTimeGroup;
+namespace Espo\Core\Formula\Functions\DatetimeGroup;
 
 use Espo\Core\Di;
 
diff --git a/application/Espo/Core/Formula/Functions/DatetimeGroup/YearType.php b/application/Espo/Core/Formula/Functions/DatetimeGroup/YearType.php
index d26bc66918..3dd96c6015 100644
--- a/application/Espo/Core/Formula/Functions/DatetimeGroup/YearType.php
+++ b/application/Espo/Core/Formula/Functions/DatetimeGroup/YearType.php
@@ -27,7 +27,7 @@
  * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
  ************************************************************************/
 
-namespace Espo\Core\Formula\Functions\DateTimeGroup;
+namespace Espo\Core\Formula\Functions\DatetimeGroup;
 
 use Espo\Core\Di;
 
diff --git a/application/Espo/Core/Formula/Functions/ObjectGroup/CloneDeepType.php b/application/Espo/Core/Formula/Functions/ObjectGroup/CloneDeepType.php
index 74fc2fbe65..33c79605fd 100644
--- a/application/Espo/Core/Formula/Functions/ObjectGroup/CloneDeepType.php
+++ b/application/Espo/Core/Formula/Functions/ObjectGroup/CloneDeepType.php
@@ -36,7 +36,7 @@ use Espo\Core\Utils\ObjectUtil;
 
 use stdClass;
 
-class cloneDeepType extends BaseFunction
+class CloneDeepType extends BaseFunction
 {
     public function process(ArgumentList $args)
     {