Error when connecting to teaspeak

[Thunderbug]

[2018-08-19 22:31:13] [DEBUG]     1 | Having new voice client. Remote address: XXX:65143
[2018-08-19 22:31:13] [DEBUG]     1 | [XXX:65143/undefined] Got non client 3.1 protocol with build timestamp 177256836
[2018-08-19 22:31:13] [DEBUG]     1 | Cant decrypt packet with setupped key Ack. Error: memory verify failed!
[2018-08-19 22:31:19] [DEBUG]     1 | XXX:65143/undefined] Got handshake timeout. XXX:65143. State: INIT_HIGH Time: 5
[2018-08-19 22:31:19] [DEBUG]     1 | [XXX:65143/undefined] Closing voice client connection. (Flush: true)
[2018-08-19 22:31:19] [DEBUG]     1 | [XXX:65143/undefined] Awaiting write prepare, write and acknowledge queue flushed
[2018-08-19 22:31:19] [DEBUG]     1 | [XXX:65143/undefined] Write prepare queue progressed
[2018-08-19 22:31:19] [DEBUG]     1 | [XXX:65143/undefined] Write and acknowledge queue are flushed

I'm getting the error: Disconnected from server (server version is too old for command)

What does the cant decrypt packet with setupped key Ack. Error: memory verify failed means?

 

[Thunderbug]

Got it, needed to set

protocol:
#Its just a test for the new Tea*Speak licensing system (you require a extra plugin!)
experimental_31: 1

in config.yml