subsidiary null handle

src/main/java/com/ffii/tsms/modules/report/service/ReportService.kt

@@ -1606,7 +1606,9 @@ open class ReportService(
 
         // NEW Column F: Subsidiary Name
         val subsidiaryNameCell = row.createCell(5)
-        subsidiaryNameCell.setCellValue(data["subsidiary_name"] as String)
+//        subsidiaryNameCell.setCellValue(data["subsidiary_name"] as String)
+        val subsidiaryName = data["subsidiary_name"] as? String ?: "N/A" // Checks if subsidiary_name is null and replaces it with "N/A"
+        subsidiaryNameCell.setCellValue(subsidiaryName)
 
         // Column G: Project Plan Start Date
         val projectPlanStartCell = row.createCell(6)