diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 4682853b58f..b0386e12ceb 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -134,10 +134,10 @@ function getMultidirOutput($object, $module = '')
 	if ($module == 'fichinter') {
 		$module = 'ficheinter';
 	}
-	if (isset($conf->$module)) {
+	if (isset($conf->$module) && property_exists($conf->$module, 'multidir_output')) {
 		return $conf->$module->multidir_output[(empty($object->entity) ? $conf->entity : $object->entity)];
 	} else {
-		return 'error-diroutput-not-defined-ffor-this-object='.$module;
+		return 'error-diroutput-not-defined-for-this-object='.$module;
 	}
 }
 
diff --git a/htdocs/expensereport/card.php b/htdocs/expensereport/card.php
index 90f808087cd..6687452d67c 100644
--- a/htdocs/expensereport/card.php
+++ b/htdocs/expensereport/card.php
@@ -2184,14 +2184,14 @@ if ($action == 'create') {
 										$minifile = getImageFileNameForSize($fileinfo['basename'], '_mini', '.png'); // For backward compatibility of old thumbs that were created with filename in lower case and with .png extension
 									}
 									//print $file['path'].'/'.$minifile.'<br>';
-									$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.'/'.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(!empty($object->entity) ? $object->entity : $conf->entity));
+									$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.'/'.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(empty($object->entity) ? $conf->entity : $object->entity));
 									if (empty($urlforhref)) {
-										$urlforhref = DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(!empty($object->entity) ? $object->entity : $conf->entity).'&file='.urlencode($relativepath.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']));
+										$urlforhref = DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(empty($object->entity) ? $conf->entity : $object->entity).'&file='.urlencode($relativepath.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']));
 										print '<a href="'.$urlforhref.'" class="aphoto" target="_blank" rel="noopener noreferrer">';
 									} else {
 										print '<a href="'.$urlforhref['url'].'" class="'.$urlforhref['css'].'" target="'.$urlforhref['target'].'" mime="'.$urlforhref['mime'].'">';
 									}
-									print '<img class="photo" height="'.$maxheightmini.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(!empty($object->entity) ? $object->entity : $conf->entity).'&file='.urlencode($relativepath.'/'.$minifile).'" title="">';
+									print '<img class="photo" height="'.$maxheightmini.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(empty($object->entity) ? $conf->entity : $object->entity).'&file='.urlencode($relativepath.'/'.$minifile).'" title="">';
 									print '</a>';
 								} else {
 									$modulepart = 'expensereport';
@@ -2223,7 +2223,7 @@ if ($action == 'create') {
 											// If the preview file is found
 											if (file_exists($fileimage)) {
 												$thumbshown = 1;
-												$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.'/'.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(!empty($object->entity) ? $object->entity : $conf->entity));
+												$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.'/'.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(empty($object->entity) ? $conf->entity : $object->entity));
 												print '<a href="'.$urlforhref['url'].'" class="'.$urlforhref['css'].'" target="'.$urlforhref['target'].'" mime="'.$urlforhref['mime'].'">';
 												print '<img height="'.$heightforphotref.'" class="photo photowithmargin photowithborder" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart=apercu'.$modulepart.'&amp;file='.urlencode($relativepathimage).'">';
 												print '</a>';
diff --git a/htdocs/expensereport/tpl/expensereport_linktofile.tpl.php b/htdocs/expensereport/tpl/expensereport_linktofile.tpl.php
index 689d95801d4..3adae85b1c3 100644
--- a/htdocs/expensereport/tpl/expensereport_linktofile.tpl.php
+++ b/htdocs/expensereport/tpl/expensereport_linktofile.tpl.php
@@ -37,15 +37,15 @@ if (!getDolGlobalString('EXPENSEREPORT_DISABLE_ATTACHMENT_ON_LINES')) {
 			if (image_format_supported($file['name']) > 0) {
 				$minifile = getImageFileNameForSize($file['name'], '_mini'); // For new thumbs using same ext (in lower case however) than original
 				//print $file['path'].'/'.$minifile.'<br>';
-				$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(!empty($object->entity) ? $object->entity : $conf->entity));
+				$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(empty($object->entity) ? $conf->entity : $object->entity));
 				if (empty($urlforhref)) {
-					$urlforhref = DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(!empty($object->entity) ? $object->entity : $conf->entity).'&file='.urlencode($fileinfo['relativename'].'.'.strtolower($fileinfo['extension']));
+					$urlforhref = DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(empty($object->entity) ? $conf->entity : $object->entity).'&file='.urlencode($fileinfo['relativename'].'.'.strtolower($fileinfo['extension']));
 					print '<a href="'.$urlforhref.'" class="aphoto" target="_blank" rel="noopener noreferrer">';
 				} else {
 					print '<a href="'.$urlforhref['url'].'" class="'.$urlforhref['css'].'" target="'.$urlforhref['target'].'" mime="'.$urlforhref['mime'].'">';
 				}
 				print '<div class="photoref backgroundblank">';
-				print '<img class="photoexpensereport photorefcenter" height="'.$maxheightmini.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(!empty($object->entity) ? $object->entity : $conf->entity).'&file='.urlencode($relativepath.$minifile).'" title="">';
+				print '<img class="photoexpensereport photorefcenter" height="'.$maxheightmini.'" src="'.DOL_URL_ROOT.'/viewimage.php?modulepart='.$modulepart.'&entity='.(empty($object->entity) ? $conf->entity : $object->entity).'&file='.urlencode($relativepath.$minifile).'" title="">';
 				print '</div>';
 				print '</a>';
 			} else {
@@ -53,7 +53,7 @@ if (!getDolGlobalString('EXPENSEREPORT_DISABLE_ATTACHMENT_ON_LINES')) {
 				$thumbshown = '';
 
 				if (preg_match('/\.pdf$/i', $file['name'])) {
-					$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(!empty($object->entity) ? $object->entity : $conf->entity));
+					$urlforhref = getAdvancedPreviewUrl($modulepart, $relativepath.$fileinfo['filename'].'.'.strtolower($fileinfo['extension']), 1, '&entity='.(empty($object->entity) ? $conf->entity : $object->entity));
 
 					$filepdf = $conf->expensereport->dir_output.'/'.$relativepath.$file['name'];
 					$fileimage = $conf->expensereport->dir_output.'/'.$relativepath.$file['name'].'_preview.png';
diff --git a/htdocs/product/card.php b/htdocs/product/card.php
index cff3bb2cb2a..119adf48a03 100644
--- a/htdocs/product/card.php
+++ b/htdocs/product/card.php
@@ -152,7 +152,7 @@ if ($id > 0 || !empty($ref)) {
 	if ($result < 0) {
 		dol_print_error($db, $object->error, $object->errors);
 	}
-	$entity = (!empty($object->entity) ? $object->entity : $conf->entity);
+	$entity = (empty($object->entity) ? $conf->entity : $object->entity);
 	if (isModEnabled("product")) {
 		$upload_dir = $conf->product->multidir_output[$entity].'/'.get_exdir(0, 0, 0, 0, $object, 'product').dol_sanitizeFileName($object->ref);
 	} elseif (isModEnabled("service")) {