I'm trying to install WildFly 10.1 on a VPS with Ubuntu 20.04.
Whatever I try, wildFly doesn't want to boot.

The errors being thrown are:
ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.remoting.endpoint.management.management.operation.handler: org.jboss.msc.service.StartException in service jboss.remoting.endpoint.management.management.operation.handler: Failed to start service

and

12:50:19,626 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("parallel-subsystem-boot") failed - address: ([]): java.lang.OutOfMemoryError: unable to create new native thread

Full log:

admin@myserver:/opt/wildfly/bin$ sudo ./standalone.sh

JBoss Bootstrap Environment

JBOSS_HOME: /opt/wildfly

JAVA: java

JAVA_OPTS: -server -Xms64m -Xmx512m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true

=========================================================================

12:50:14,618 INFO [org.jboss.modules] (main) JBoss Modules version 1.5.2.Final
12:50:15,336 INFO [org.jboss.msc] (main) JBoss MSC version 1.2.6.Final
12:50:15,512 INFO [org.jboss.as] (MSC service thread 1-2) WFLYSRV0049: WildFly Full 10.1.0.Final (WildFly Core 2.2.0.Final) starting
12:50:19,400 INFO [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0039: Creating http management service using socket-binding (management-http)
12:50:19,432 INFO [org.xnio] (MSC service thread 1-2) XNIO version 3.4.0.Final
12:50:19,442 INFO [org.xnio.nio] (MSC service thread 1-2) XNIO NIO Implementation Version 3.4.0.Final
12:50:19,497 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-1) MSC000001: Failed to start service jboss.remoting.endpoint.management.management.operation.handler: org.jboss.msc.service.StartException in service jboss.remoting.endpoint.management.management.operation.handler: Failed to start service
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.6.Final.jar:1.2.6.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_312]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_312]
at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_312]
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method) [rt.jar:1.8.0_312]
at java.lang.Thread.start(Thread.java:717) [rt.jar:1.8.0_312]
at org.jboss.threads.JBossThread.start(JBossThread.java:342)
at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:957) [rt.jar:1.8.0_312]
at java.util.concurrent.ThreadPoolExecutor.ensurePrestart(ThreadPoolExecutor.java:1603) [rt.jar:1.8.0_312]
at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:334) [rt.jar:1.8.0_312]
at java.util.concurrent.ScheduledThreadPoolExecutor.scheduleWithFixedDelay(ScheduledThreadPoolExecutor.java:597) [rt.jar:1.8.0_312]
at org.jboss.as.controller.remote.ResponseAttachmentInputStreamSupport.(ResponseAttachmentInputStreamSupport.java:123)
at org.jboss.as.controller.remote.ResponseAttachmentInputStreamSupport.(ResponseAttachmentInputStreamSupport.java:117)
at org.jboss.as.controller.remote.AbstractModelControllerOperationHandlerFactoryService.start(AbstractModelControllerOperationHandlerFactoryService.java:90)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.6.Final.jar:1.2.6.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.6.Final.jar:1.2.6.Final]
... 3 more

12:50:19,552 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.serverManagement.controller.management.worker: org.jboss.msc.service.StartException in service jboss.serverManagement.controller.management.worker: Failed to start service
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.6.Final.jar:1.2.6.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_312]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_312]
at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_312]
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method) [rt.jar:1.8.0_312]
at java.lang.Thread.start(Thread.java:717) [rt.jar:1.8.0_312]
at org.xnio.nio.NioXnioWorker.start(NioXnioWorker.java:151)
at org.xnio.nio.NioXnio.createWorker(NioXnio.java:213)
at org.jboss.as.server.mgmt.ManagementWorkerService.start(ManagementWorkerService.java:53) [wildfly-server-2.2.0.Final.jar:2.2.0.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.6.Final.jar:1.2.6.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.6.Final.jar:1.2.6.Final]
... 3 more

12:50:19,626 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("parallel-subsystem-boot") failed - address: ([]): java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:717)
at org.jboss.threads.JBossThread.start(JBossThread.java:342)
at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:957)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1378)
at org.jboss.as.controller.ParallelBootOperationStepHandler$2.execute(ParallelBootOperationStepHandler.java:274)
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:890)
at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:659)
at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:370)
at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1329)
at org.jboss.as.controller.ModelControllerImpl.boot(ModelControllerImpl.java:493)
at org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:387)
at org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:349)
at org.jboss.as.server.ServerService.boot(ServerService.java:397)
at org.jboss.as.server.ServerService.boot(ServerService.java:366)
at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:299)
at java.lang.Thread.run(Thread.java:748)

12:50:19,662 WARN [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000004: Failure during stop of service jboss.as.external-mgmt-executor: java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:717)
at org.jboss.threads.JBossThread.start(JBossThread.java:342)
at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:957)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1378)
at org.jboss.as.server.ExternalManagementRequestExecutor.stop(ExternalManagementRequestExecutor.java:133)
at org.jboss.msc.service.ServiceControllerImpl$StopTask.stopService(ServiceControllerImpl.java:2056)
at org.jboss.msc.service.ServiceControllerImpl$StopTask.run(ServiceControllerImpl.java:2017)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

12:50:19,700 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details.
admin@myserver:/opt/wildfly/bin$

Any help would be much appreciated!