XF 1.5 Issues with deleting a thread


Active member
Hi guys,

Having an issue with my forum this morning.

When I try to delete a thread on my forum im receiving an error

An appropriate representation of the requested resource /posts/69167/delete could not be found on this server.

I am then IP banned from my server!

Your connection to this server has been blocked in this server's firewall due to multiple failed logins.
Your IP will automatically removed from the firewall within 30 minutes. Please contact our support department if you are still blocked within 30 minutes and provide the following information:

Your blocked IP address is XXXXXXXXXXXX

This server's hostname is XXXXXXXXX

Any ideas?