Error: Invalid RPC token (XSRF token missing)

Getting error while deleting ODK form from ODK Aggregate admin panel

Error: Invalid RPC token (XSRF token missing)

Please help.
Backend database is PostgreSQL.

Your post does not contain enough information for me to answer your question. In general, the best way to get help is to fill out the questions in the pre-filled template that you get when you create a support post. So, with that in mind, can you answer these questions?

  1. What version are you using?
  2. What steps can we take to reproduce the problem?
  3. What you have you tried to fix the problem?
  4. Anything else we should know or have? If you have a test form or screenshots or logs, please attach.