Current issue everyone on my pack/server is having

This is the last 5min of the log given by minecraft launcher

[23:20:53] [VoiceChatClientThread/INFO]: Initializing Opus decoder with sample rate 48000 Hz, frame size 1920 bytes and max payload size 900 bytes
[23:21:18] [VoiceChatClientThread/INFO]: Initializing Opus decoder with sample rate 48000 Hz, frame size 1920 bytes and max payload size 900 bytes
[23:21:18] [SoundControl Sound Processor/WARN]: SoundControl Sound Processor is lagging; behind 54 msecs
[23:21:28] [Render thread/WARN]: Received balloons for unknown entity!
[23:21:37] [SoundControl Sound Processor/WARN]: SoundControl Sound Processor is lagging; behind 54 msecs
[23:21:56] [VoiceChatClientThread/INFO]: Initializing Opus decoder with sample rate 48000 Hz, frame size 1920 bytes and max payload size 900 bytes
[23:22:39] [VoiceChatClientThread/INFO]: Initializing Opus decoder with sample rate 48000 Hz, frame size 1920 bytes and max payload size 900 bytes
[23:22:39] [VoiceChatClientThread/INFO]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.OutOfMemoryError: unable to create new native thread
[23:22:39] [VoiceChatClientThread/INFO]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Thread.start0(Native Method)
[23:22:39] [VoiceChatClientThread/INFO]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Thread.start(Thread.java:714)
[23:22:39] [VoiceChatClientThread/INFO]: [java.lang.ThreadGroup:uncaughtException:1052]: at de.maxhenkel.voicechat.voice.client.Client.run(Client.java:113)

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