Thank you for sharing your dream with us. Please take everything that I share to the Holy Spirit as He Alone gives the accurate interpretation.
There is backstabbing/backbiting that is happening in your physical world that you may or not be aware of. This is definitely negative, demonic, and requires spiritual warfare on your part. Claim and declare Isaiah 54:17, put on the Armour of God (Ephesians 6:10-18) and cover yourself with the precious Blood of Jesus. The latter two strategies will work especially if you are a Christ-follower.