Suppress printing the real pathFileName in case it's not accessible. Only show if debugging is on.

extension/qfq/qfq/AbstractBuildForm.php

@@ -2904,6 +2904,10 @@ abstract class AbstractBuildForm {
                 $link = new Link($this->sip);
                 $value = $link->renderLink('s|M:file|d|F:' . $value . '|' . $formElement[FE_FILE_DOWNLOAD_BUTTON]);
             } else {
+                // In case debugging is off: showing download button means 'never show the real pathfilename'
+                if (!$this->showDebugInfoFlag) {
+                    $value = '';
+                }
                 $value .= " - file not found, please check field 'value'";
             }
         }