Throwing Fishing Rod Hook at Endermen crashes game

While running some commands on an enderman, I threw a fishing rod hook at it, and it promptly crashed the game. Repeated several times, and only happened when the commands were running.

COMMANDS

--objectives--
/scoreboard objectives add timer dummy
 
--give command--
/give @p minecraft:spawn_egg 1 0 {EntityTag:{id:"Enderman",NoAI:1b,ActiveEffects:[{Id:14,Amplifier:1,Duration:99999}],Silent:1b},ench:[],display:{Name:"EnderBomb"}}
 
--clock commands--
/scoreboard players add @e[type=Enderman] timer 1
/execute @a[m=2] ~ ~ ~ execute @e[type=Enderman,r=4] ~ ~ ~ summon FireworksRocketEntity ~ ~10 ~ {LifeTime:0,FireworksItem:{id:fireworks,Count:1,tag:{Fireworks:{Explosions:[{Type:1,Flicker:1,Trail:1,Colors:[9437439],FadeColors:[13893887,16711867]}]}}}}
/execute @a[m=2] ~ ~ ~ execute @e[type=Enderman,r=4] ~ ~ ~ summon Creeper ~ ~10 ~ {Fuse:0s,CustomName:"Ender Bomb",ExplosionRadius:5}
/execute @e[type=Enderman] ~ ~ ~ tp @a[r=3,m=2] ~ ~10 ~
/kill @e[type=Enderman,score_timer_min=200]

Just set all those up, spawn the endermen (using the custom spawnegg) and throw a fishing hook at it