Cant load server

So, I recently made an Aternos server (1.14.4), which I quite enjoyed. Sadly, I broke it by making an automatically running command that teleported people to fishing hooks, (a grappling hook, in a way). That was too laggy, and before I could turn it off, the server crashed. Since then, I have not been able to join my server. Every time I try to join it, I get a "Timed out" message, or a "Disconnected" message. Checking through the log, the server turns on, then realises there is a problem and then turns off again. Sometimes, I can join the server, but it seems to go still, no entities moving, no commands, no ticks, for around 10 seconds, then the server shuts off completely. I have tried downloading the world and then reuploading it, and also tried playing the world in Singleplayer mode. Reuploading the world didn't seem to make a difference, and playing it in Singleplayer didn't work. The world loads up to 100%, and then gets stuck there, while Minecraft seemed to crash. I don't know what to do, the world is a minigame I have been working on for a while and really has a special place in my heart. If someone please could help I would be extremely grateful!

Don't really see how that could help as i can't run commands on the server at all.

I have tried that and it doesn't work. Server automatically shuts off when i turn it on.

Do you mean the debug command?

If yes, then i do /debug start in the console, but i get no message, and the paper error messages start flowing in before i can do anything, which ends up with the server shutting off

Oh in an repeat command block that always in on. the command is something like "execute as @e[type=fishing_bobber] as @s run tp @p ~ ~ ~" or something i dont really remember

How?

Thank you kind person

Still doesn't work i don't know what the problem is anymore );

https://mclo.gs/cxCtH2u

Hello?

Nope, server doesn't seem to have problem but i cannot join. Also, on the server page of minecraft it will say ??? instead of 0/20

https://mclo.gs/20dBeyU