L 07/11/2013 - 19:58:29: Public function -1 is invalid
L 07/11/2013 - 19:58:29: [AMXX] Displaying debug trace (plugin "Shop.amxx")
L 07/11/2013 - 19:58:29: [AMXX] Run time error 10: native error (native "callfunc_begin_i")
L 07/11/2013 - 19:58:29: [AMXX] [0] Shop.sma::Items_Menu (line 128 )