fix error create problem

uwsgi.ini

@@ -0,0 +1,26 @@
+[uwsgi]
+# Socket and pid file location/permission.
+socket = :8000
+pidfile = /tmp/dmoj-site.pid
+chmod-pidfile = 666
+
+# Paths.
+chdir = .
+
+# Details regarding DMOJ application.
+protocol = uwsgi
+master = true
+plugins = python
+env = DJANGO_SETTINGS_MODULE=dmoj.settings
+module = dmoj.wsgi:application
+optimize = 2
+
+# Logging
+disable-logging = true
+log-4xx = true
+log-5xx = true
+
+# Scaling settings. Tune as you like.
+memory-report = true
+reload-on-rss = 512M
+workers = 8