diff --git a/htdocs/core/lib/project.lib.php b/htdocs/core/lib/project.lib.php
index 9eab5cd6a70..dbfeef03259 100644
--- a/htdocs/core/lib/project.lib.php
+++ b/htdocs/core/lib/project.lib.php
@@ -2035,15 +2035,19 @@ function print_projecttasks_array($db, $form, $socid, $projectsListId, $mytasks
 	require_once DOL_DOCUMENT_ROOT.'/projet/class/project.class.php';
 
 	$listofstatus = array_keys($listofoppstatus);
-	$statusOppList = array();
-	$themeColorId = 0;
-	foreach ($listofstatus as $oppStatus) {
-		$oppStatusCode = dol_getIdFromCode($db, $oppStatus, 'c_lead_status', 'rowid', 'code');
-		if ($oppStatusCode) {
-			$statusOppList[$oppStatus]['code'] = $oppStatusCode;
-			$statusOppList[$oppStatus]['color'] = isset($theme_datacolor[$themeColorId]) ? implode(', ', $theme_datacolor[$themeColorId]) : '';
+
+	if (is_array($listofstatus) && ! empty($conf->global->USE_COLOR_FOR_PROSPECTION_STATUS)) {
+		// Define $themeColorId and array $statusOppList for each $listofstatus
+		$themeColorId = 0;
+		$statusOppList = array();
+		foreach ($listofstatus as $oppStatus) {
+			$oppStatusCode = dol_getIdFromCode($db, $oppStatus, 'c_lead_status', 'rowid', 'code');
+			if ($oppStatusCode) {
+				$statusOppList[$oppStatus]['code'] = $oppStatusCode;
+				$statusOppList[$oppStatus]['color'] = isset($theme_datacolor[$themeColorId]) ? implode(', ', $theme_datacolor[$themeColorId]) : '';
+			}
+			$themeColorId++;
 		}
-		$themeColorId++;
 	}
 
 	$projectstatic = new Project($db);
@@ -2203,6 +2207,7 @@ function print_projecttasks_array($db, $form, $socid, $projectsListId, $mytasks
 						print '<td class="right">';
 						// Because color of prospection status has no meaning yet, it is used if hidden constant is set
 						if (empty($conf->global->USE_COLOR_FOR_PROSPECTION_STATUS)) {
+							$oppStatusCode = dol_getIdFromCode($db, $objp->opp_status, 'c_lead_status', 'rowid', 'code');
 							if ($langs->trans("OppStatus".$oppStatusCode) != "OppStatus".$oppStatusCode) {
 								print $langs->trans("OppStatus".$oppStatusCode);
 							}