diff --git a/src/Command/ImportFromJsonCommand.php b/src/Command/ImportFromJsonCommand.php
index 1bde142..d12b791 100644
--- a/src/Command/ImportFromJsonCommand.php
+++ b/src/Command/ImportFromJsonCommand.php
@@ -843,9 +843,10 @@ private function importRoles(OutputInterface $output)
             $personRole->setPerson($person);
 
             $role = $this->em->getRepository(Role::class)->getOneByRoleType($r['type']);
-            if ($role) {
-                $personRole->setRole($role);
+            if (is_null($role)) {
+                continue;
             }
+            $personRole->setRole($role);
 
             $group = $this->em->getRepository(Group::class)->find($r['group_id']);
             if ($group) {
diff --git a/src/DataFixtures/Aggregator/AggregatorTestFixture.php b/src/DataFixtures/Aggregator/AggregatorTestFixture.php
index 39337b3..f110ec6 100644
--- a/src/DataFixtures/Aggregator/AggregatorTestFixture.php
+++ b/src/DataFixtures/Aggregator/AggregatorTestFixture.php
@@ -278,9 +278,10 @@ protected function importRoles(ObjectManager $em)
             }
 
             $role = $em->getRepository(Role::class)->getOneByRoleType($r['type']);
-            if ($role) {
-                $personRole->setRole($role);
+            if (is_null($role)) {
+                continue;
             }
+            $personRole->setRole($role);
 
             $group = $em->getRepository(Group::class)->find($r['group_id']);
             if ($group) {
diff --git a/src/Entity/Midata/PersonRole.php b/src/Entity/Midata/PersonRole.php
index 0fe0ba0..64de1e6 100644
--- a/src/Entity/Midata/PersonRole.php
+++ b/src/Entity/Midata/PersonRole.php
@@ -155,7 +155,7 @@ public function getGroup()
     /**
      * @param Role|null $role
      */
-    public function setRole(?Role $role)
+    public function setRole(Role $role)
     {
         $this->role = $role;
     }
@@ -163,7 +163,7 @@ public function setRole(?Role $role)
     /**
      * @return Role|null
      */
-    public function getRole(): Role
+    public function getRole(): ?Role
     {
         return $this->role;
     }
diff --git a/src/Service/Aggregator/DemographicCampAggregator.php b/src/Service/Aggregator/DemographicCampAggregator.php
index fce604c..e47f842 100644
--- a/src/Service/Aggregator/DemographicCampAggregator.php
+++ b/src/Service/Aggregator/DemographicCampAggregator.php
@@ -223,7 +223,9 @@ private function getRelevantPersonRole(array $personRoles, DateTimeImmutable $ev
                 if ($personRole->getCreatedAt() > $eventDate) {
                     continue;
                 }
+            // TODO: Warning this is just to prevent the app from breaking due to unstable API, could mess up the logic
                 if (
+                    !is_null($personRole->getRole()) &&
                     !in_array(
                         $personRole->getRole()->getRoleType(),
                         array_merge(self::$leadersRoleTypes, self::$memberRoleTypes, self::$mainGroupRoleTypes)
diff --git a/src/Service/Aggregator/RoleAggregator.php b/src/Service/Aggregator/RoleAggregator.php
index e191713..60d17d5 100644
--- a/src/Service/Aggregator/RoleAggregator.php
+++ b/src/Service/Aggregator/RoleAggregator.php
@@ -54,6 +54,9 @@ public function aggregate(DateTime $startDate = null)
         $highestAggregatedMidataIndex = $this->personRoleRepository->getHighestAggregatedMidataIndex();
         $newPersonRoles = $this->midataPersonRoleRepository->findAllWithHigherIndex($highestAggregatedMidataIndex);
         foreach ($newPersonRoles as $newPersonRole) {
+            if (is_null($newPersonRole->getRole())) {
+                continue;
+            }
             $aggregatedPersonRole = new AggregatedPersonRole();
             $aggregatedPersonRole->setMidata($newPersonRole);
             $aggregatedPersonRole->setEndAt($newPersonRole->getDeletedAt());
diff --git a/src/Service/Aggregator/WidgetAggregator.php b/src/Service/Aggregator/WidgetAggregator.php
index b0547c3..7ecc765 100644
--- a/src/Service/Aggregator/WidgetAggregator.php
+++ b/src/Service/Aggregator/WidgetAggregator.php
@@ -221,7 +221,7 @@ public function findLeaderGroupTypeForRoleType(PersonRole $personRole): string
     {
         foreach (self::$leaderRoleTypesByGroupType as $groupType => $roleTypes) {
             foreach ($roleTypes as $roleType) {
-                if ($roleType === $personRole->getRole()->getRoleType()) {
+                if (!is_null($personRole->getRole()) && $roleType === $personRole->getRole()->getRoleType()) {
                     return $groupType;
                 }
             }
@@ -238,7 +238,7 @@ public function findGroupAndPersonTypeByPersonRolesHierarchy(array $personRoles)
         foreach (self::$leadersRoleTypes as $leaderRole) {
             /** @var PersonRole $personRole */
             foreach ($personRoles as $personRole) {
-                if (trim($personRole->getRole()->getRoleType()) !== $leaderRole) {
+                if (!is_null($personRole->getRole()) && trim($personRole->getRole()->getRoleType()) !== $leaderRole) {
                     continue;
                 }
                 return ['leaders', $this->findLeaderGroupTypeForRoleType($personRole)];
@@ -247,7 +247,7 @@ public function findGroupAndPersonTypeByPersonRolesHierarchy(array $personRoles)
         foreach (self::$memberRoleTypes as $memberRole) {
             /** @var PersonRole $personRole */
             foreach ($personRoles as $personRole) {
-                if (trim($personRole->getRole()->getRoleType()) !== $memberRole) {
+                if (!is_null($personRole->getRole()) && trim($personRole->getRole()->getRoleType()) !== $memberRole) {
                     continue;
                 }
                 return ['members', $personRole->getGroup()->getGroupType()->getGroupType()];