diff --git a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contest-categories/contestCategoriesGridColumns.tsx b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contest-categories/contestCategoriesGridColumns.tsx
index 988e8c0a8e..1f42d6fa78 100644
--- a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contest-categories/contestCategoriesGridColumns.tsx
+++ b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contest-categories/contestCategoriesGridColumns.tsx
@@ -70,7 +70,7 @@ const categoriesFilterableColumns: AdministrationGridColDef[] = [
                   categoryId: params.row.id,
                   categoryName: params.row.name,
               })}
-              text={params.value.toString()}
+              text={params.value?.toString()}
             />
         ,
     },
@@ -100,7 +100,7 @@ const categoriesFilterableColumns: AdministrationGridColDef[] = [
                   categoryId: params.row.parentId,
                   categoryName: params.row.parent,
               })}
-              text={params.value.toString()}
+              text={params.value?.toString()}
             />
         ,
     },
diff --git a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contests/contestsGridColumns.tsx b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contests/contestsGridColumns.tsx
index 1ce9a6a8fa..3cb4283fc0 100644
--- a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contests/contestsGridColumns.tsx
+++ b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/contests/contestsGridColumns.tsx
@@ -53,7 +53,7 @@ const contestFilterableColumns: AdministrationGridColDef[] = [
                   contestId: params.row.id,
                   contestName: params.row.name,
               })}
-              text={params.value.toString()}
+              text={params.value?.toString()}
             />
         ,
     },
@@ -73,7 +73,7 @@ const contestFilterableColumns: AdministrationGridColDef[] = [
                   contestId: params.row.id,
                   contestName: params.row.name,
               })}
-              text={params.value.toString()}
+              text={params.value?.toString()}
             />
         ,
     },
diff --git a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/exam-groups/examGroupsGridColumns.tsx b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/exam-groups/examGroupsGridColumns.tsx
index 3853035f98..964df2eb53 100644
--- a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/exam-groups/examGroupsGridColumns.tsx
+++ b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/exam-groups/examGroupsGridColumns.tsx
@@ -50,7 +50,7 @@ const examGroupsFilterableColumns: AdministrationGridColDef[] = [
                   contestId: params.row.contestId,
                   contestName: params.row.contestName,
               })}
-              text={params.value.toString()}
+              text={params.value?.toString()}
             />
         ,
     },
diff --git a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/participants/participantsGridColumns.tsx b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/participants/participantsGridColumns.tsx
index af93a9bf08..b221d488a6 100644
--- a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/participants/participantsGridColumns.tsx
+++ b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/participants/participantsGridColumns.tsx
@@ -61,7 +61,7 @@ const participantsFilteringColumns: AdministrationGridColDef[] = [
                   contestId: params.row.contestId,
                   contestName: params.row.contestName,
               })}
-              text={params.value.toString()}
+              text={params.value?.toString()}
             />
         ,
     },
diff --git a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/problems/problemGridColumns.tsx b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/problems/problemGridColumns.tsx
index 0228407278..feaddf0d95 100644
--- a/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/problems/problemGridColumns.tsx
+++ b/Servers/UI/OJS.Servers.Ui/ClientApp/src/pages/administration-new/problems/problemGridColumns.tsx
@@ -79,7 +79,7 @@ const problemFilterableColumns: AdministrationGridColDef[] = [
                   contestId: params.row.contestId,
                   contestName: params.row.contest,
               })}
-              text={params.value.toString()}
+              text={params.value?.toString()}
             />
         ,
     },