Out of Resources When I'm Not?

My server keeps throwing the exceptions in the image (and in the attached message.txt) saying it's out of resources CPU wise but it's definitely not.

Spark: https://spark.lucko.me/A6sKWdvCrO (all threads)

Exceptions:

[91.580s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[91.580s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[91.580s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[91.583s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[91.584s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[91.585s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[91.585s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[16:44:22 INFO]: UUID of player lumiscosity is ed1d823a-28c0-430b-9448-2bdb7efa1e3c
[92.545s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[92.545s][warning][os,thread] Failed to start the native thread for java.lang.Thread "Folia Async Scheduler Thread #17"
[92.549s][warning][os,thread] Failed to start thread "Unknown thread" - pthread_create failed (EAGAIN) for attributes: stacksize: 1024k, guardsize: 4k, detached.
[92.550s][warning][os,thread] Failed to start the native thread for java.lang.Thread "pool-119-thread-9"
[16:44:23 ERROR]: Could not pass event PlayerJoinEvent to wFlyV2 v1.0.1.4
java.lang.OutOfMemoryError: unable to create native thread: possibly out of memory or process/resource limits reached
        at java.base/java.lang.Thread.start0(Native Method) ~[?:?]
        at java.base/java.lang.Thread.start(Thread.java:1553) ~[?:?]
        at java.base/java.lang.System$2.start(System.java:2577) ~[?:?]

Image: