Index: sources/storage/FileHandler.cpp
===================================================================
diff -u -re961fc7bcdeba8ffab9c96da20244b07405f8f99 -ra5c75192af33a9284e4b4886df0c337ba6fcc9f9
--- sources/storage/FileHandler.cpp	(.../FileHandler.cpp)	(revision e961fc7bcdeba8ffab9c96da20244b07405f8f99)
+++ sources/storage/FileHandler.cpp	(.../FileHandler.cpp)	(revision a5c75192af33a9284e4b4886df0c337ba6fcc9f9)
@@ -49,7 +49,7 @@
             << QDate::currentDate().toString("yyyy_MM_dd")   << " "
             << QTime::currentTime().toString("HH:mm:ss"  )   << " "
             << mCritical
-            << endl;
+            << Qt::endl;
     }
     ++count;
 }
@@ -340,7 +340,7 @@
     // if it is breaks
     // else adds the file to the list and continues.
     // DEBUG: qDebug() << "%" << totalSizeStorage << totalSizeFiles << totalSizeRetain << totalSizeFiles - totalSizeRetain << vRetainPercent;
-    quint64 totalSizeRemoved = 0;
+    quint64 totalSizeRemoved = 0; Q_UNUSED(totalSizeRemoved);
     for (auto it = fileInfoListAll.crbegin(); it != fileInfoListAll.crend(); ++it) {
         // (totalSizeFiles <= totalSizeRetain) has been checked above and didn't return; ,
         // so at least one file should be checked and then check again in the loop.