getting CSRF Invalid and booted out from my forum can someone help with how to fix errorbug?

Thanks for the report! A "CSRF Invalid" error combined with being logged out usually means your session got cleared server-side while you still had a page open. The security token in that page then no longer matches, and you appear logged out.
A few questions to narrow it down:

• What version of Flatboard are you running, and are any plugins active?
• Does this happen after leaving a tab open for a while (idle), or right away when submitting a form?
• Do you have multiple tabs/windows of the forum open at once?
• Did you recently change your own password or your account's group/permissions?
• Is your forum behind a reverse proxy or CDN (Cloudflare, etc.)?
  In the meantime, could you check stockage/logs on your server for entries like:
• CSRF validation failed
• Session expired
• Session migrated
  around the time this happens? That'll tell us exactly which mechanism is triggering it.
  Workaround (for now): Fully reload the page before submitting a form if you've had it open for a while. That refreshes the CSRF token and should avoid the error.

@biggyboss92 I’m unable to reproduce the issue on my end. I haven’t been able to trigger the “CSRF Invalid” error or get logged out.

Could you also provide the logs from the moment the error occurs? They might help me identify what’s causing the issue.

It's ok this issue has not occurred for me for a while now.