Its extremely hard to explain this problem so please watch this video it shows you because seeing it is much easier than me explaining it.... and also "Seeing is believing," Polar Express quote XD
https://youtu.be/V7LBl8ES-K4
http://i.imgur.com/JaeCKlS.png
http://i.imgur.com/I2tS6Bo.png
^Those are the images for the errors
If anyone knows how to fix this please contact me.
I have tried FE it doesnt change anything.
You have Filtering Enabled on, which prevents clients from changing anything to the server (replicating to the server). Anything that they change only they will see.
To go about this, use RemoteEvents and RemoteFunctions or turn off FE. However, turning it off will prevent people under the age of 13 from joining your place- for security reasons.
Filtering Enabled is a good way to protect games.
Good luck!