['disconnect.spam' While Attempting To Log In]

My kick to successful login ratio is 4:1 right now, from what I'm experiencing.

[[Rank Reactivate] Herobrine]

IGN: Herobrine

Rank: Premium+.

Server: Pure Survival.

Screenshots: 20th October 2018 | Old screenshot from 24th March 2018

['disconnect.spam' While Attempting To Log In]

I was trying to log in to my account and for some reason, right after I pressed 'enter', the screen dimmed a bit and 'disconnect.spam' shows up. Happens with anything I type as the password. My username is Herobrine, in case it's required. Also, I found out that upon typing 'lol' or other short words as the password, it just shows 'wrong password', that's understandable, yes. But, my password is long; for security. So, when I typed my password or any other long words, again, 'disconnect.spam' shows up. All I need now is a fix. Thank you for taking the time to look into this problem.