My code works, but, it can cause some bug ? little help here please

[Skoll]

Hello guys and ladies.

I did that code, and it works perfectly so far, but, I don't know how exactly it work
It can cause some bug in the future ?
My objective is prevent chunkbans using furnaces. establishing a limit to place furnace, that is 8, and the player have to break old furnaces to place again. I know that the furnace blow up it will bug my code, and I will fix this using an expression in skquery lime.
I prevented that players break furnaces from each other, which can cause some bug too.
My doubt is: there are some things can cause some bugs that I'm not finding?

on place:
    if event-block is a furnace:
        if size of {chunkban.risk.place::furnace::%event-player%::*} is 8:
            cancel event
            message "&4&l[ChunkBan-Check]&f&l Você já colocou %size of {chunkban.risk.place::furnace::%event-player%::*}% fornalhas, remova alguma para por mais" to event-player
        else:
            add event-block to {chunkban.risk.place::furnace::%event-player%::*}
            if size of {chunkban.risk.place::furnace::%event-player%::*} is greater than 9:
                loop all players:
                    if loop-player has permission "OP" or "Admin" or "Sub-Admin" or "Moderator":
                        message "&4&l[ChunkBan-Check]&f&l %event-player% está colocando muitas fornalhas (%size of {chunkban.risk.place::furnace::%event-player%::*}%).max= 8" to loop-player

on break:
    if event-block is a furnace:
        cancel event
        loop {chunkban.risk.place::furnace::%event-player%::*}:
            if "%location of event-block%" is "%location of loop-value%":
                set block at location of event-block to air
                remove loop-value from {chunkban.risk.place::furnace::%event-player%::*}
            else:
                cancel event

Thanks.
[doublepost=1601487226,1601403765][/doublepost]

    if event-block is a furnace:
        if size of {chunkban.risk.place::furnace::%event-player%::*} is 8:
            cancel event
            message "&4&l[ChunkBan-Check]&f&l Você já colocou %size of {chunkban.risk.place::furnace::%event-player%::*}% fornalhas, remova alguma para por mais" to event-player
        else:
            add location of event-block to {chunkban.risk.place::furnace::%event-player%::*}
            if size of {chunkban.risk.place::furnace::%event-player%::*} is greater than 9:
                loop all players:
                    if loop-player has permission "OP" or "Admin" or "Sub-Admin" or "Moderator":
                        message "&4&l[ChunkBan-Check]&f&l %event-player% está colocando muitas fornalhas (%size of {chunkban.risk.place::furnace::%event-player%::*}%).max= 8" to loop-player

on break:

    if event-block is a furnace:
        if {chunkban.risk.place::furnace::%event-player%::*} contains location of event-block:
            remove location of event-block from {chunkban.risk.place::furnace::%event-player%::*}
        else:
            cancel event
            broadcast "&cEsta fornalha não te pertence"

SOLVED.