ZP mod + zp class classic error

L 02/10/2019 - 01:33:36: Start of error session.
L 02/10/2019 - 01:33:36: Info (map "de_dust2") (file "addons/amxmodx/logs/error_20190210.log")
L 02/10/2019 - 01:33:36: Invalid array handle provided (0)
L 02/10/2019 - 01:33:36: [AMXX] Displaying debug trace (plugin "zombie_plague40.amxx", version "4.3")
L 02/10/2019 - 01:33:36: [AMXX] Run time error 10: native error (native "ArrayGetCell")
L 02/10/2019 - 01:33:36: [AMXX]    [0] zombie_plague40.sma::native_register_zombie_class (line 9673)
L 02/10/2019 - 01:33:36: Unhandled dynamic native error
L 02/10/2019 - 01:33:36: [AMXX] Displaying debug trace (plugin "zclass_heavy.amxx", version "unknown")
L 02/10/2019 - 01:33:36: [AMXX] Run time error 10: native error (native "zp_register_zombie_class")
L 02/10/2019 - 01:33:36: [AMXX]    [0] zclass_heavy.sma::plugin_precache (line 180)