crash on my server when i log on after useing command blocks (seebelow)

I am setting up a parkour server and am using checkpoints the checkpoint system i have runs 5 commands in a command block 1) "/setblock ~ ~-1 ~ minecraft:redstone_block" the one under the redstone block placed is "/setblock ~ ~1 ~ minecraft:air" the other 3 are "/scoreboard objectives add cp001 dummy", "/scoreboard players set @p1,_2, cp001 1" and "/scoreboard players add @p,~2,~1,score_cp001=0 c 5" and it crashes a have attached what the command block configuration is and what the crash looks like.