Apex

Hello guys i need help my roleplay server how to fix code? [11:40:53] ERROR: account/login-panel/server.lua:32: attempt to concatenate a nil value [11:36:56] WARNING: admin-system/Player/s_player_commands.lua:734: Expected number, got non-convertible string. This warning may be an error in future versions. [DUP x6] [12:00:50] ERROR: item-system/s_item_management.lua:255: attempt to concatenate a nil value [12:00:50] ERROR: global/s_item_globals.lua:10: call: failed to call 'item-system:giveItem' [12:00:56] ERROR: item-system/s_item_management.lua:255: attempt to concatenate a nil value [12:00:56] ERROR: global/s_item_globals.lua:10: call: failed to call 'item-system:giveItem' [12:01:25] ERROR: item-system/s_item_management.lua:255: attempt to concatenate a nil value [12:01:25] ERROR: global/s_item_globals.lua:10: call: failed to call 'item-system:giveItem' [12:00:17] WARNING: report-system/s_reports.lua:83: Bad argument @ 'getPlayersInTeam' [Expected team at argument 1, got nil] [12:03:20] ERROR: advertisements/advertisements.lua:117: call: failed to call 'mysql:select' [string "?"] [12:03:20] ERROR: advertisements/advertisements.lua:117: bad argument #1 to 'ipairs' (table expected, got boolean)