Read rules and show full code.
Problem is becuase keys are not defined correctly on the top of the plugin.
I'll give you an example , a guy had the same problem.
Look here:
https://forums.alliedmods.net/showthread.php?t=281369
example
#define Keys (1<<0)|(1<<1)|(1<<2)|(1<<3)|(1<<9)
here will work only keys 1,2,3,4.
To add 5 and 6 you add :
(1<<4) and (1<<5)
So i will look like :
#define Keys (1<<0)|(1<<1)|(1<<2)|(1<<3)|(1<<4)|(1<<5)
You might be confused because you don't see key "6" this is because counting is started from 0 so key 5 will be 4 and 6 will be 5 and so on..
Hope you understood.