I hosted server on GCP by using linux ubuntu
Was fine on last week , but started from yesterday , server will suddenly lag and kicking all player .
server status is fine(CPU/Ram Usage, network status).

These are the kicking reason check from RustAdmin's log:

Kicking  (Steam Status "InvalidAuthSession")

Kicking  (Connection timed out)

kicked: Packet Flooding: Player Tick

(16:41:22) | Invalid Position: generic_world[28208890] rock (world) (979.9, -505.3, 629.0) (destroying)

(16:41:19) | Invalid Position: generic_world[28208381] rock (world) (967.6, -503.6, 629.6) (destroying)

(16:41:20) | Invalid Position: generic_world[28208222] rock (world) (969.9, -500.7, 617.9) (destroying)

(16:41:21) | Invalid Position: generic_world[28208303] rock (world) (975.0, -500.4, 627.0) (destroying)

(16:41:22) | Invalid Position: generic_world[28209295] rock (world) (989.4, -500.5, 620.2) (destroying)

(16:41:22) | Invalid Position: generic_world[28208890] rock (world) (979.9, -505.3, 629.0) (destroying)

(16:41:23) | Invalid Position: generic_world[28209372] rock (world) (985.6, -504.7, 617.7) (destroying)

(16:41:23) | Invalid Position: generic_world[28209100] rock (world) (984.7, -506.3, 623.2) (destroying)

(16:41:23) | Invalid Position: generic_world[28209147] rock (world) (984.6, -504.7, 620.5) (destroying)

(16:41:25) | Invalid Position: generic_world[28209010] rock (world) (989.2, -501.4, 615.8) (destroying)

Anyone can help?