Client left game (Steam auth ticket has been canceled)

[Elpisaur]

Hello Facepunch, i'm experiencing an odd issue today, i'm curious as to whether or not any of you are experiencing this aswell.
My server was running smoothly at 50 people, when all of the sudden a major lag-spike hit, followed by people getting constantly disconnected for the following reason: Client left game (Steam auth ticket has been canceled).
This has been ongoing for 10 minutes now.

:offline: Player Duckasarus (STEAM_0:1:71045723) has left the server: Disconnect by user.
(OOC) MajesticToast: laggg
:offline: Player apaperfullofweed (STEAM_0:0:41266959) has left the server: Client left game (Steam auth ticket has been canceled)

:offline: Player burntspagetti (STEAM_0:0:144799663) has left the server: Client left game (Steam auth ticket has been canceled)

:offline: Player LOL REKT ITS SHACK (STEAM_0:1:18515273) has left the server: Client left game (Steam auth ticket has been canceled)

[DarkRP] FIREPOWERX3 has been made a Trial-Moderator On Duty!
:online: Player LOL REKT ITS SHACK (STEAM_0:1:18515273) has joined the game.
:offline: Player Wassup Nat (STEAM_0:0:48713857) has left the server: Disconnect by user.
[Advert] Officer Martin: Autist, your getting kidnapped. Follow me. Your hands are tied and your feet are restrained.
(OOC) Officer Martin: jesus
[Advert] Officer Martin: flase
:offline: Player MajesticToast (STEAM_0:0:127036370) has left the server: Client left game (Steam auth ticket has been canceled)

:offline: Player FIREPOWERX3 (STEAM_0:1:93917895) has left the server: Client left game (Steam auth ticket has been canceled)

(OOC) HappyRipper: i dont wanna lose my printers lol
:online: Player DUDEFACE (STEAM_0:1:92958757) has joined the game.
[Advert] Dtoast: ACTIVEATE THE VPN
:offline: Player Kiwi (STEAM_0:1:86255401) has left the server: Client left game (Steam auth ticket has been canceled)

:offline: Player ThisIsTheOrigin (STEAM_0:0:30632842) has left the server: Client left game (Steam auth ticket has been canceled)

(OOC) Officer Martin: ddos attack most definitely
[DarkRP] Officer Martin has been made a Civil Protection Medic!
(OOC) HappyRipper: uhhggg
(OOC) Officer Martin: Ues a vpn
:offline: Player Magic [IE] (STEAM_0:0:135997648) has left the server: Client left game (Steam auth ticket has been canceled)

:offline: Player dobbinsja (STEAM_0:1:83707693) has left the server: Client left game (Steam auth ticket has been canceled)

:offline: Player CorruptButter  «CSGOPOOR.com» (STEAM_0:0:103912677) has left the server: CorruptButter  «CSGOPOOR.com» timed out
(OOC) The Civil Commuity Union: Fuckin kids with their doos programs
[DarkRP] Dr. Black Jack has been made a Hobo!
[DarkRP] Officer Martin has been made a Cp Medic (Patrol)!
:online: Player CorruptButter  «CSGOPOOR.com» (STEAM_0:0:103912677) has joined the game.
:online: Player dobbinsja (STEAM_0:1:83707693) has joined the game.
(OOC) Officer Martin: there using stresstest to ddos oh my god
We hope you're enjoying your stay at Garnet DarkRP!
LostLonelyDoge killed |✘☠✘☠|SR.Baidu antiviru using m9k_dbarrel
:offline: Player Sauce Gotti (STEAM_0:1:95405284) has left the server: Sauce Gotti timed out
You don't have access to this command, Garnet!
(OOC) Officer Martin: we need to ban whoever is doing this now
You don't have access to this command, Garnet!
[DarkRP] |✘☠✘☠|SR.Baidu antiviru has been made a CJ!
(OOC) HappyRipper: cant they track back to them btw? from where the packets are comin from?