diff --git a/admin/static/js/app.js b/admin/static/js/app.js
index 7817d41b..a149e4dd 100644
--- a/admin/static/js/app.js
+++ b/admin/static/js/app.js
@@ -436,7 +436,7 @@ angular.module("FICApp")
 		$rootScope.settings.end = new Date(nEnd);
 		$rootScope.settings.generation = new Date(nGen);
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when saving settings:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when saving settings:', response.data.errmsg);
 	    });
 	}
 	$scope.regenerate = function() {
@@ -462,7 +462,7 @@ angular.module("FICApp")
 		    $rootScope.newBox('success', type + 'reseted');
 		    $location.url("/");
 		}, function(response) {
-		    $rootScope.newBox('danger', 'An error occurs when reseting ' + type + ':', response.data);
+		    $rootScope.newBox('danger', 'An error occurs when reseting ' + type + ':', response.data.errmsg);
 		});
 	    }
 	};
@@ -495,7 +495,7 @@ angular.module("FICApp")
 			$('#revokeModal').modal('hide');
 			$scope.certificates = Certificate.query();
 		    }, function(response) {
-			$rootScope.newBox('danger', 'An error occurs when trying to associate certificate:', response.data);
+			$rootScope.newBox('danger', 'An error occurs when trying to associate certificate:', response.data.errmsg);
 		    }
 		);
 	    }
@@ -510,7 +510,7 @@ angular.module("FICApp")
 		    $scope.certificates = Certificate.query();
 		    $scope.selectedTeam = null;
 		}, function(response) {
-		    $rootScope.newBox('danger', 'An error occurs when trying to associate certificate:', response.data);
+		    $rootScope.newBox('danger', 'An error occurs when trying to associate certificate:', response.data.errmsg);
 		}
 	    );
 	};
@@ -519,7 +519,7 @@ angular.module("FICApp")
 	    $http.post("/api/ca/new").then(function() {
 		$scope.ca = CACertificate.get();
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when generating CA:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when generating CA:', response.data.errmsg);
 	    });
 	};
 
@@ -527,7 +527,7 @@ angular.module("FICApp")
 	    $http.post("/api/certs").then(function() {
 		$scope.certificates = Certificate.query();
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when generating certificate:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when generating certificate:', response.data.errmsg);
 	    });
 	};
     })
@@ -656,7 +656,7 @@ angular.module("FICApp")
 	    prms.$promise.then(function() {
 		$rootScope.newBox('success', 'Scene successfully published!');
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when saving scene:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when saving scene:', response.data.errmsg);
 	    });
 	};
 	$scope.addScene = function() {
@@ -918,7 +918,7 @@ angular.module("FICApp")
 		    $rootScope.newBox('success', 'Synchronisation de la liste des thèmes terminée avec succès.');
 	    }, function(response) {
 		$scope.inSync = false;
-		$rootScope.newBox('danger', 'An error occurs when synchronizing theme list:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when synchronizing theme list:', response.data.errmsg);
 	    });
 	};
     })
@@ -1076,7 +1076,7 @@ angular.module("FICApp")
 		$rootScope.staticFilesNeedUpdate++;
 		$location.url("/themes/" + $routeParams.themeId);
 	    }, function(response) {
-		    $rootScope.newBox('danger', 'An error occurs when trying to delete exercice:', response.data);
+		    $rootScope.newBox('danger', 'An error occurs when trying to delete exercice:', response.data.errmsg);
 		});
 	}
 	$scope.saveExercice = function() {
@@ -1156,7 +1156,7 @@ angular.module("FICApp")
 		$scope.hints.splice($scope.hints.indexOf(this.hint), 1);
 		$rootScope.staticFilesNeedUpdate++;
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when trying to delete hint:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when trying to delete hint:', response.data.errmsg);
 	    });
 	}
 	$scope.saveHint = function() {
@@ -1183,7 +1183,7 @@ angular.module("FICApp")
 		    $rootScope.newBox('success', "Synchronisation de la liste d'indices terminée avec succès.");
 	    }, function(response) {
 		$scope.inSync = false;
-		$rootScope.newBox('danger', 'An error occurs when synchronizing hints list:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when synchronizing hints list:', response.data.errmsg);
 	    });
 	};
     })
@@ -1199,7 +1199,7 @@ angular.module("FICApp")
 		$scope.flags.splice($scope.flags.indexOf(this.flag), 1);
 		$rootScope.staticFilesNeedUpdate++;
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when trying to delete flag:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when trying to delete flag:', response.data.errmsg);
 	    });
 	}
 	$scope.saveFlag = function() {
@@ -1226,7 +1226,7 @@ angular.module("FICApp")
 		    $rootScope.newBox('success', "Synchronisation de la liste de drapeaux terminée avec succès.");
 	    }, function(response) {
 		$scope.inSync = false;
-		$rootScope.newBox('danger', 'An error occurs when synchronizing flags list:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when synchronizing flags list:', response.data.errmsg);
 	    });
 	};
     })
@@ -1242,7 +1242,7 @@ angular.module("FICApp")
 		$scope.quiz.splice($scope.quiz.indexOf(this.q), 1);
 		$rootScope.staticFilesNeedUpdate++;
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when trying to delete flag:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when trying to delete flag:', response.data.errmsg);
 	    });
 	}
 	$scope.saveQuiz = function() {
@@ -1310,7 +1310,7 @@ angular.module("FICApp")
 		$scope.certificates = TeamCertificate.query({ teamId: $routeParams.teamId });
 		$rootScope.newBox('success', 'Certificate successfully dissociated!');
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when dissociating certiticate:', response.data);
+		$rootScope.newBox('danger', 'An error occurs when dissociating certiticate:', response.data.errmsg);
 	    });
 	}
 
@@ -1328,7 +1328,7 @@ angular.module("FICApp")
 	$scope.deleteTeam = function() {
 	    backName = this.team.name;
 	    this.team.$remove(function() { $rootScope.newBox('success', 'Team ' + backName + ' successfully removed.'); $location.url("/teams/"); $rootScope.staticFilesNeedUpdate++; },
-			      function(response) { $rootScope.newBox('danger', 'An error occurs during suppression of the team:', response.data); });
+			      function(response) { $rootScope.newBox('danger', 'An error occurs during suppression of the team:', response.data.errmsg); });
 	}
 	$scope.showStats = function() {
 	    $location.url("/teams/" + $scope.team.id + "/stats");
@@ -1345,7 +1345,7 @@ angular.module("FICApp")
 		$rootScope.staticFilesNeedUpdate++;
 		$scope.history = TeamHistory.query({ teamId: $routeParams.teamId });
 	    }, function(response) {
-		$rootScope.newBox('danger', 'An error occurs when removing history item: ', response.data);
+		$rootScope.newBox('danger', 'An error occurs when removing history item: ', response.data.errmsg);
 	    });
 	}
     })