Thanks but again commands do not work.. /knife and /knifeshop
and shows this error:
L 02/26/2013 - 13:34:26: [AMXX] Displaying debug trace (plugin "knife_shopp.amxx")
L 02/26/2013 - 13:34:26: [AMXX] Run time error 4: index out of bounds
L 02/26/2013 - 13:34:26: [AMXX] [0] knife_shopp.sma::cmd_knife (line 126)