diff --git a/Controller.php b/Controller.php
index 74ec5cc..df3a72d 100644
--- a/Controller.php
+++ b/Controller.php
@@ -295,16 +295,16 @@ class Controller extends ModuleAbstract implements WebInterface
     private function createTaskFromRequest(RequestAbstract $request) : Task
     {
         $task = new Task();
-        $task->setTitle($request->getData('title') ?? '');
-        $task->setDescription($request->getData('description') ?? '');
+        $task->setTitle((string) ($request->getData('title') ?? ''));
+        $task->setDescription((string) ($request->getData('description') ?? ''));
         $task->setCreatedBy($request->getHeader()->getAccount());
         $task->setCreatedAt(new \DateTime('now'));
-        $task->setDue(new \DateTime($request->getData('due') ?? 'now'));
+        $task->setDue(new \DateTime((string) ($request->getData('due') ?? 'now')));
         $task->setStatus(TaskStatus::OPEN);
         $task->setType(TaskType::SINGLE);
 
         $element = new TaskElement();
-        $element->setForwarded($request->getData('forward') ?? $request->getHeader()->getAccount());
+        $element->setForwarded((int) ($request->getData('forward') ?? $request->getHeader()->getAccount()));
         $element->setCreatedAt($task->getCreatedAt());
         $element->setCreatedBy($task->getCreatedBy());
         $element->setDue($task->getDue());
@@ -364,13 +364,13 @@ class Controller extends ModuleAbstract implements WebInterface
     private function createTaskElementFromRequest(RequestAbstract $request) : TaskElement
     {
         $element = new TaskElement();
-        $element->setForwarded($request->getData('forward') ?? $request->getHeader()->getAccount());
+        $element->setForwarded((int) ($request->getData('forward') ?? $request->getHeader()->getAccount()));
         $element->setCreatedAt(new \DateTime('now'));
-        $element->setCreatedBy($request->getHeader()->getAccount());
-        $element->setDue(new \DateTime($request->getData('due') ?? 'now'));
-        $element->setStatus($request->getData('status'));
-        $element->setTask($request->getData('task'));
-        $element->setDescription($request->getData('description'));
+        $element->setCreatedBy((int) $request->getHeader()->getAccount());
+        $element->setDue(new \DateTime((string) ($request->getData('due') ?? 'now')));
+        $element->setStatus((int) ($request->getData('status')));
+        $element->setTask((int) ($request->getData('task')));
+        $element->setDescription((string) ($request->getData('description')));
 
         return $element;
     }