diff --git a/DataStorage/Database/Query/Builder.php b/DataStorage/Database/Query/Builder.php
index 449ceed9b..c3cfa350d 100644
--- a/DataStorage/Database/Query/Builder.php
+++ b/DataStorage/Database/Query/Builder.php
@@ -894,7 +894,7 @@ class Builder extends BuilderAbstract
 
     public function execute()
     {
-        $sth = $this->connection->con->prepare($this->toSQL());
+        $sth = $this->connection->con->prepare($this->toSql());
         $sth->execute();
 
         return $sth;
diff --git a/Math/Finance/Forecasting/ClassicalDecomposition.php b/Math/Finance/Forecasting/ClassicalDecomposition.php
index 478cbacd4..538f9d8e3 100644
--- a/Math/Finance/Forecasting/ClassicalDecomposition.php
+++ b/Math/Finance/Forecasting/ClassicalDecomposition.php
@@ -69,8 +69,9 @@ class ClassicalDecomposition
     private function computeSeasonalComponent() : array
     {
         $seasonalComponent = [];
+        $count = count($this->data);
 
-        for ($i = 0; $i < $this->orderSize; $i++) {
+        for ($i = 0; $i < $this->dataSize; $i++) {
             $temp = [];
 
             for ($j = $i * $this->order; $j < $count; $j += $this->order) {