Config corruptNot An Issue
{
    "Airdrop": {
        "Default radius for location based massdrop": 500,
        "Delay between Massdrop plane spawns": 0.66,
        "Deploy Smoke on drop as it falls": true,
        "Deploy with Audio Alarm on drop": true,
        "Deploy with Audio Alarms on drop only during the night": true,
        "Deploy with Spinning Siren Light on drop": true,
        "Deploy with Spinning Siren Light on drop only during the night": true,
        "Disable SupplySignal randomization": false,
        "Massdrop default plane amount": 10,
        "Multiplier for (plane height * highest point on Map); Default 1.0": 1.0,
        "Multiplier for overall flight distance; lower means faster at map": 1.25,
        "Prefab effect to use": "assets/bundled/prefabs/fx/survey_explosion.prefab",
        "signal rocket explosion timer": 5,
        "signal rocket speed": 15,
        "Use special effect at reaching ground position": true
    },
    "Allow Damage Airdrop Settings": {
        "Players can shoot down the drop": false,
        "Players can shoot down the drop - needed hits": 3,
        "Set Angular Drag for drop": 0.1,
        "Set Drag for drop (drop resistance)": 0.1,
        "Set drop allow to explode on impact": true,
        "Set drop chance exploding on impact (x out of 100)": 25,
        "Set Mass weight for drop": 1.00
    },
    "DropSettings": {
        "DropDefault": {
            "additionalheight": 0,
            "crateAirResistance": 2.0,
            "cratesGap": 50,
            "despawnMinutes": 15,
            "includeStaticItemList": false,
            "includeStaticItemListName": "regular",
            "includeStaticItemListOnly": false,
            "itemDivider": 2,
            "maxCrates": 1,
            "maxItems": 8,
            "minCrates": 1,
            "minItems": 8,
            "planeSpeed": 75,
            "useCustomLootTable": false
        },
        "DropTypes": {
            "custom_event": {
                "additionalheight": 0,
                "crateAirResistance": 2.0,
                "cratesGap": 50,
                "despawnMinutes": 15,
                "fireSignalRocket": true,
                "includeStaticItemList": false,
                "includeStaticItemListName": "custom_event",
                "includeStaticItemListOnly": false,
                "itemDivider": 2,
                "maxCrates": ,
                "maxItems": 8,
                "minCrates": 1,
                "minItems": 8,
                "notificationInfo": "Custom Stuff",
                "planeSpeed": 75,
                "useCustomLootTable": false
            },
            "dropdirect": {
                "additionalheight": 0,
                "crateAirResistance": 2.0,
                "cratesGap": 50,
                "despawnMinutes": 15,
                "fireSignalRocket": false,
                "includeStaticItemList": false,
                "includeStaticItemListName": "dropdirect",
                "includeStaticItemListOnly": false,
                "itemDivider": 2,
                "maxCrates": 1,
                "maxItems": 8,
                "minCrates": 1,
                "minItems": 8,
                "planeSpeed": 75,
                "useCustomLootTable": false
            },
            "massdrop": {
                "additionalheight": 0,
                "crateAirResistance": 0.5,
                "cratesGap": 50,
                "despawnMinutes": 15,
                "fireSignalRocket": true,
                "includeStaticItemList": false,
                "includeStaticItemListName": "massdrop",
                "includeStaticItemListOnly": false,
                "itemDivider": 2,
                "maxCrates": 10,
                "maxItems": 8,
                "minCrates": 10,
                "minItems": 8,
                "planeSpeed": 75,
                "useCustomLootTable": false
            },
            "regular": {
                "additionalheight": 0,
                "crateAirResistance": 2.0,
                "cratesGap": 50,
                "despawnMinutes": 15,
                "fireSignalRocket": false,
                "includeStaticItemList": false,
                "includeStaticItemListName": "regular",
                "includeStaticItemListOnly": false,
                "itemDivider": 2,
                "maxCrates": 1,
                "maxItems": 8,
                "minCrates": 1,
                "minItems": 8,
                "planeSpeed": 75,
                "useCustomLootTable": false
            },
            "supplysignal": {
                "additionalheight": 0,
                "crateAirResistance": 0.5,
                "cratesGap": 50,
                "despawnMinutes": 15,
                "fireSignalRocket": true,
                "includeStaticItemList": false,
                "includeStaticItemListName": "supplysignal",
                "includeStaticItemListOnly": false,
                "itemDivider": 2,
                "maxCrates": 4,
                "maxItems": 8,
                "minCrates": 2,
                "minItems": 8,
                "planeSpeed": 75,
                "useCustomLootTable": false
            }
        }
    },
    "Generic": {
        "Admin messages color": "#c0c0c0",
        "AuthLevel needed for console commands": 1,
        "Broadcast messages color": "#ffffff",
        "Chat/Message prefix": "Air Drop",
        "GUI Announce command": "announce",
        "Lock DirectDrop to be looted only by target player": true,
        "Lock SignalDrop to be looted only by target player": false,
        "Prefix color": "#00ffff",
        "Prefix format": "<color={0}>{1}</color>: ",
        "Show message to admin after command usage": true,
        "Time for active smoke of SupplySignal": 210.0,
        "Unlock crates only after player stopped looting": false,
        "version": "2.9.2"
    },
    "Notification": {
        "Maximum distance in meters to get notified about landed Drop": 1000,
        "Maximum distance in meters to get notified about looted Drop": 1000,
        "Notify a player about incoming Drop to his location": false,
        "Notify a player about spawned Drop at his location": false,
        "Notify admins per chat about player who has thrown SupplySignal ": false,
        "Notify console at Drop by SupplySignal": false,
        "Notify console at timed-regular Drop": false,
        "Notify console when a Drop is being looted": false,
        "Notify console when Drop is landed": false,
        "Notify console when Drop is spawned": false,
        "Notify console when Drop landed/spawned only at the first": false,
        "Notify players at custom/event Drop": false,
        "Notify players at custom/event Drop including Coords": false,
        "Notify players at custom/event Drop including Grid Area": false,
        "Notify players at Drop by SupplySignal": false,
        "Notify players at Drop by SupplySignal including Coords ": false,
        "Notify players at Drop by SupplySignal including Grid Area": false,
        "Notify players at Massdrop": false,
        "Notify players at Random/Timed Drop": false,
        "Notify players at Random/Timed Drop including Coords": false,
        "Notify players at Random/Timed Drop including Grid Area": false,
        "Notify players when a Drop is being looted": false,
        "Notify players when a Drop is being looted including coords": false,
        "Notify players when a Drop is being looted including Grid Area": false,
        "Notify players when Drop is landed about distance": false,
        "Notify Players who has thrown a SupplySignal": false,
        "Notify Players who has thrown a SupplySignal including coords": false,
        "Notify Players who has thrown a SupplySignal including Grid Area": false,
        "use GUI Announcements for any Drop notification": false
    },
    "SimpleUI": {
        "SimpleUI_Enable": false,
        "SimpleUI_FontSize": 25,
        "SimpleUI_HideTimer": 10,
        "SimpleUI_Left": 0.1,
        "SimpleUI_MaxHeight": 0.1,
        "SimpleUI_MaxWidth": 0.8,
        "SimpleUI_NoticeColor": "1 1 1 0.9",
        "SimpleUI_ShadowColor": "0.1 0.1 0.1 0.5",
        "SimpleUI_Top": 0.05
    },
    "StaticItems": {
        "DropTypes": {
            "custom_event": {
                "itemDivider": 2,
                "itemList": {
                    "explosive.timed": 10,
                    "grenade.f1": 10
                }
            },
            "dropdirect": {
                "itemDivider": 2,
                "itemList": {
                    "explosive.timed": 4,
                    "surveycharge": 10
                }
            },
            "massdrop": {
                "itemDivider": 2,
                "itemList": {
                    "explosive.timed": 4,
                    "grenade.f1": 10
                }
            },
            "regular": {
                "itemDivider": 2,
                "itemList": {
                    "cctv.camera": 2,
                    "targeting.computer": 2
                }
            },
            "supplysignal": {
                "itemDivider": 2,
                "itemList": {
                    "explosive.timed": 4,
                    "metal.refined": 100
                }
            }
        }
    },
    "Timer": {
        "Cleanup old Drops at serverstart": true,
        "Maximum minutes for random timer delay ": 45,
        "Minimum minutes for random timer delay ": 45,
        "Minimum players for timed Drop": 1,
        "Remove builtIn Airdrop": true,
        "Reset Timer after manual random drop": false,
        "Use Airdrop timer": true,
        "Used Airdrop timer command": "random"
    },
    "Timers": {
        "log to console": true,
        "Minimum players for running Timers": 1,
        "RealTime": {
            "00:45": "ad.massdrop 10",
            "01:30": "ad.massdrop 10",
            "02:15": "ad.massdrop 10",
            "03:00": "ad.massdrop 10",
            "03:45": "ad.massdrop 10",
            "04:30": "ad.massdrop 10",
            "05:15": "ad.massdrop 10",
            "06:00": "ad.massdrop 10",
            "06:45": "ad.massdrop 10",
            "07:30": "ad.massdrop 10",
            "08:15": "ad.massdrop 10",
            "09:00": "ad.massdrop 10",
            "09:45": "ad.massdrop 10",
            "10:30": "ad.massdrop 10",
            "11:15": "ad.massdrop 10",
            "12:00": "ad.massdrop 10",
            "12:45": "ad.massdrop 10",
            "13:30": "ad.massdrop 10",
            "14:15": "ad.massdrop 10",
            "15:00": "ad.massdrop 10",
            "16:45": "ad.massdrop 10",
            "17:30": "ad.massdrop 10",
            "18:15": "ad.massdrop 10",
            "19:00": "ad.massdrop 10",
            "19:45": "ad.massdrop 10",
            "20:30": "ad.massdrop 10",
            "21:15": "ad.massdrop 10",
            "22:00": "ad.massdrop 10",
            "23:45": "ad.massdrop 10",
            "22:30": "ad.massdrop 10",
            "23:15": "ad.massdrop 10",
            "24:00": "ad.massdrop 10"
        },
        "ServerTime": {
            "18": "ad.massdrop 10",
            "6": "massdrop 3"
        },
        "use RealTime": true,
        "use ServerTime": false
    }
}

ALWAYS run a config through a json validator to check after editing, this is the result i got from your config there is a blank instead of a number.

Error: Parse error on line 56:
...2,				"maxCrates": ,				"maxItems": 8,
----------------------^
Expecting 'STRING', 'NUMBER', 'NULL', 'TRUE', 'FALSE', '{', '[', got ','​
Locked automatically