fix : j'aurais dû me relire

bdd.php

@@ -237,7 +237,7 @@ function RechercheExercices($query, $length, $tags, $tout_les_insa)
     global $conn;
 
     // Start with the base SQL query
-    $sql = "SELECT  * FROM documents AS d INNER JOIN ensembles AS e ON d.ensemble_id = e.id JOIN (SELECT id,username,num_insa FROM users)  as u ON u.id=e.id_auteur WHERE e.valide=TRUE";
+    $sql = "SELECT  * FROM documents AS d INNER JOIN ensembles AS e ON d.ensemble_id = e.id JOIN (SELECT id,username,nom_insa FROM users)  as u ON u.id=e.id_auteur WHERE e.valide=TRUE";
 
     // Array to hold the parameters
     $params = [];