some json tag in "give command" doesn't work

Sorry for not being good at English. (Google Translate)
I looked at that article and tried to execute the commands about the chest, but it didn't work.
https://forums.pmmp.io/threads/item-nbt-tag-in-give-command.326/

Commands of the Error

Code:

/give sho chest 1 {display:{Name:"§lLocked Chest"},BlockEntityTag:{Lock:"My Secret Key",Items:[{id:264,Count:64,Slot:0}]}}

Code:

/give sho chest 1 {display:{Name:"§rSuspicious Chest"},BlockEntityTag:{Items:[{id:7,Count:64,Slot:0,display:{Name:"FEEL THE POWER!"}}]}}

Code:

/give sho chest 1 {display:{Name:"§rHeavy Chest"},BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:54,Count:1,Slot:0,tag:{BlockEntityTag:{Items:[{id:7,Count:1,Slot:0,tag:{display:{Name:"I can only be placed on bedrock"},CanPlaceOn:["bedrock"]}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}}]}}

The errors were all the same.
[Server thread/CRITICAL]: RuntimeException: "Expected a tag of type pocketmine\nbt\tag\ByteTag, got pocketmine\nbt\tag\IntTag" (EXCEPTION) in "vendor/pocketmine/nbt/src/tag/CompoundTag" at line 99

And the ones below were error free, but they didn't work. (Item has been given but does tag not apply.)

Code:

/give sho diamond_shovel 1 {CanDestroy:["grass"]}

Code:

/give sho wool:6 64 {CanPlaceOn:["dirt"]}