diff --git a/judge/jinja2/gravatar.py b/judge/jinja2/gravatar.py
index 932e691f7..1cea15cfd 100644
--- a/judge/jinja2/gravatar.py
+++ b/judge/jinja2/gravatar.py
@@ -31,4 +31,4 @@ def gravatar(email, size=80, default=None):
         gravatar_url += urlencode(args)
         return gravatar_url
     else:
-        return f"avatar{Profile.objects.get(id=user_id).avt_url.thumbnail[f'{size}x{size}']}"
+        return f"/avatar{Profile.objects.get(id=user_id).avt_url.thumbnail[f'{size}x{size}']}"
diff --git a/judge/views/problem.py b/judge/views/problem.py
index 4d658723c..599449e51 100755
--- a/judge/views/problem.py
+++ b/judge/views/problem.py
@@ -820,7 +820,7 @@ def get_initial(self):
         initial = super(ProblemCreate, self).get_initial()
         initial = initial.copy()
         initial['description'] = misc_config(self.request)['misc_config']['description_example']
-        initial['memory_limit'] = 262144  # 256 MB
+        initial['memory_limit'] = 1048576 # 1GB
         initial['partial'] = True
         try:
             initial['group'] = ProblemGroup.objects.get(name='Uncategorized').pk