ERROR DEBUGGER CHEAT ENGINE HELP PLEASE

[BLEDAR888]

If i want for example to find a pointer for a address in the cheat engine and i do right click in the address ,doing
Find out what writtes to this address
it's give me a error message
Failed to inject Debugger
I have Cheat engine 6.2 and i have try all 2 Debugger Veoh debbuger and Windows Debugger but no one Work.
Can anyone tell what settings to do in cheat engine to make to work the debbuger because without debugger i can't find the pointer?

[Logtetsch]

I have Cheat engine 6.1 and use the veh debugger.
Try it with "find out what access this address"!

[BLEDAR888]

I have used too cheat engine 6.1 and give me the same error
Failed to inject debugger
I have try Veoh debugger and windows debugger and give me same error.
For bypass 4story i used -----
Or the bypass is detected when i do Find out what writtes to this address and Find out what access this address or is another way to do to make the debugger to work
Can someone can tell me the right method to make to work this debugger?