Check for no session. Closes #1075

lib/session.js

@@ -49,6 +49,10 @@ export async function getSession(req) {
         country,
         device,
       });
+
+      if (!session) {
+        return null;
+      }
     } catch (e) {
       if (!e.message.includes('Unique constraint')) {
         throw e;