Fix import

apps/member/management/commands/import_olddb.py

@@ -151,7 +151,7 @@ class Command(BaseCommand):
                     "country": args[10],
                     "phone_number": args[11],
                     "school": args[12],
-                    "student_class": args[13].lower().replace('premiere', 'première'),
+                    "student_class": args[13].lower().replace('premiere', 'première') if args[13] else None,
                     "responsible_name": args[14],
                     "responsible_phone": args[15],
                     "responsible_email": args[16],
@@ -245,7 +245,11 @@ class Command(BaseCommand):
                     "uploaded_at": args[4],
                 }
                 with transaction.atomic():
+                    try:
                         Solution.objects.create(**obj_dict)
+                    except:
+                        print("Solution exists")
+                        continue
         self.stdout.write(self.style.SUCCESS("Solutions imported"))
 
         with open("import_olddb/syntheses.csv") as f: