update report

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

@@ -759,7 +759,7 @@ open class ReportService(
 
             if (groupedInvoices.containsKey(result)) {
                 groupedInvoices[result]!!.forEachIndexed { _, invoice ->
-                    sheet.getRow(rowIndex++).apply {
+                    sheet.createRow(rowIndex++).apply {
                         createCell(0).apply {
                             setCellValue(result)
                         }
@@ -797,7 +797,7 @@ open class ReportService(
             }
 
             if (groupedTimesheets.containsKey(result)) {
-                sheet.getRow(rowIndex++).apply {
+                sheet.createRow(rowIndex++).apply {
 
                     createCell(0).apply {
                         setCellValue(result.format(dateFormatter))