Offline Timer Module (bedrock)

/summon FallingSand ~ ~1 ~ {Block:activator_rail,Time:1,Passengers:[{id:MinecartCommandBlock,Tags:["MCB"],Command:"/setblock ~2 0 ~ repeating_command_block 5 replace {auto:1b,Command:\"/scoreboard players add Tick MCB_Time 1\"}"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/setblock ~3 0 ~ minecraft:chain_command_block 5 replace {auto:1b,Command:\"/scoreboard players set @a MCB_Time 0\"}"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/setblock ~4 0 ~ minecraft:chain_command_block 5 replace {auto:1b,Command:\"/scoreboard players test Tick MCB_Time 72000\"}"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/setblock ~5 0 ~ minecraft:chain_command_block 13 replace {auto:1b,Command:\"/scoreboard players set Tick MCB_Time 0\"}"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/setblock ~6 0 ~ minecraft:chain_command_block 13 replace {auto:1b,Command:\"/scoreboard players add * MCB_LastSeenH 1\"}"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/setblock ~7 0 ~ minecraft:chain_command_block 13 replace {auto:1b,Command:\"/scoreboard players reset Tick MCB_LastSeenH\"}"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/setblock ~8 0 ~ minecraft:chain_command_block 13 replace {auto:1b,Command:\"/scoreboard players reset @a MCB_LastSeenH\"}"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/scoreboard objectives add MCB_LastSeenH dummy Hours Offline"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/scoreboard objectives add MCB_Time dummy"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/scoreboard objectives setdisplay sidebar MCB_LastSeenH"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/tellraw @p [\"\",{\"text\":\"Offline Timer Module\",\"color\":\"dark_green\",\"underlined\":\"true\",\"clickEvent\":{\"action\":\"open_url\",\"value\":\"https://youtu.be/5SsTdv61QWs\"},\"hoverEvent\":{\"action\":\"show_text\",\"value\":{\"text\":\"\",\"extra\":[{\"text\":\"https://youtu.be/OGO9w0GFSJ8\"}]}}},{\"text\":\" by \",\"color\":\"dark_green\"},{\"text\":\"MunkeyzWorld\",\"color\":\"dark_green\",\"italic\":\"true\",\"underlined\":\"true\",\"clickEvent\":{\"action\":\"open_url\",\"value\":\"https://www.youtube.com/channel/UC3EQSQ45O1LiMECrDu6B20g\"},\"hoverEvent\":{\"action\":\"show_text\",\"value\":{\"text\":\"\",\"extra\":[{\"text\":\"https://www.youtube.com/channel/UC3EQSQ45O1LiMECrDu6B20g\"}]}}},{\"text\":\" installed\",\"color\":\"dark_green\"}]"},{id:MinecartCommandBlock,Tags:["MCB"],Command:"/kill @e[tag=MCB,r=1]"}]}