Docker: runtime/cgo: pthread_create failed: Resource temporarily unavailable

I wrote a docker-compose.yml which is working on my local ubuntu 18.04 system. I ran the same yml on my ubuntu server 18.04 lts machine and got the errormessage in the title. I tried to increase TasksMax for the process but it didnt work.
I also set DefaultTasksMax=infinity in /etc/systemd/system.conf.

Some outputs:

systemctl show -p TasksMax docker:

TasksMax=infinity

systemctl status docker | grep Tasks:

└─50-TasksMax.conf  (This line is not showing up on my local 
                     machine)
Tasks: 53

This is leading me to the point that i still havent made the configs correct.

Here is the Docker output when excecuting docker-compose up -d:

ERROR: for wordpress-cert  Cannot start service wordpress-cert: b'OCI runtime create failed: container_linux.go:345: starting container process caused "process_linux.go:430: container init caused "process_linux.go:413: running prestart hook 0 caused \"error running hook: exit status 2, stdout: , stderr: runtime/cgo: pthread_create failed: Resource temporarily unavailable\\nSIGABRT: abort\\nPC=0x7f5cd5db7e97 m=0 sigcode=18446744073709551610\\n\\ngoroutine 0 [idle]:\\nruntime: unknown pc 0x7f5cd5db7e97\\nstack: frame={sp:0x7ffe59e1f6c0, fp:0x0} stack=[0x7ffe59620d50,0x7ffe59e1fd80)\\n00007ffe59e1f5c0:  [...] ffffffffffffffff  ffffffffffffffff \\nruntime: unknown pc 0x7f5cd5db7e97\\nstack: frame={sp:0x7ffe59e1f6c0, fp:0x0} stack=[0x7ffe59620d50,0x7ffe59e1fd80)\\n00007ffe59e1f5c0:  [...] ffffffffffffffff  ffffffffffffffff \\n\\ngoroutine 1 [runnable, locked to thread]:\\ngithub.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus.(*Registry).Register(0xc0005e3b00, 0x55922583c640, 0xc000760b90, 0x0, 0x0)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus/registry.go:298 +0x1e6\\ngithub.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus.(*Registry).MustRegister(0xc0005e3b00, 0xc00075d000, 0x1, 0x1)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus/registry.go:403 +0x78\\ngithub.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus.MustRegister(...)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus/registry.go:152\\ngithub.com/docker/docker/vendor/github.com/docker/go-metrics.Register(...)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/docker/go-metrics/register.go:8\\ngithub.com/docker/docker/builder/dockerfile.init.0()\\n\\t/go/src/github.com/docker/docker/builder/dockerfile/metrics.go:43 +0x2d3\\n\\ngoroutine 20 [syscall]:\\nos/signal.signal_recv(0x559222e8e556)\\n\\t/usr/local/go/src/runtime/sigqueue.go:139 +0x9e\\nos/signal.loop()\\n\\t/usr/local/go/src/os/signal/signal_unix.go:23 +0x24\\ncreated by os/signal.init.0\\n\\t/usr/local/go/src/os/signal/signal_unix.go:29 +0x43\\n\\nrax    0x0\\nrbx    0x7f5cd6165840\\nrcx    0xffffffffffffffff\\nrdx    0x0\\nrdi    0x2\\nrsi    0x7ffe59e1f6c0\\nrbp    0x559224b7603d\\nrsp    0x7ffe59e1f6c0\\nr8     0x0\\nr9     0x7ffe59e1f6c0\\nr10    0x8\\nr11    0x246\\nr12    0x5592271bd1f0\\nr13    0x11\\nr14    0x559224b1c640\\nr15    0x0\\nrip    0x7f5cd5db7Creating nextcloud-cert             ... error
unknown'

ERROR: for nextcloud-cert  Cannot start service nextcloud-cert: b'OCI runtime create failed: container_linux.go:345: starting container process caused "process_linux.go:430: container init caused "process_linux.go:413: running prestart hook 0 caused \"error running hook: exit status 2, stdout: , stderr: runtime/cgo: pthread_create failed: Resource temporarily unavailable\\nSIGABRT: abort\\nPC=0x7f2376cbce97 m=0 sigcode=18446744073709551610\\n\\ngoroutine 0 [idle]:\\nruntime: unknown pc 0x7f2376cbce97\\nstack: frame={sp:0x7fff898f4ad0, fp:0x0} stack=[0x7fff890f6070,0x7fff898f50a0)\\n00007fff898f49d0:  [...] 00007fff898f4b40  0000564eca7254a3 <runtime.persistentalloc1+515> [...] \\nruntime: unknown pc 0x7f2376cbce97\\nstack: frame={sp:0x7fff898f4ad0, fp:0x0} stack=[0x7fff890f6070,0x7fff898f50a0)\\n00007fff898f49d0:  [...] \\n\\ngoroutine 1 [running]:\\nruntime.systemstack_switch()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:311 fp=0xc00006e798 sp=0xc00006e790 pc=0x564eca774450\\nruntime.main()\\n\\t/usr/local/go/src/runtime/proc.go:130 +0x67 fp=0xc00006e7e0 sp=0xc00006e798 pc=0x564eca747cd7\\nruntime.goexit()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:1337 +0x1 fp=0xc00006e7e8 sp=0xc00006e7e0 pc=0x564eca776551\\n\\nrax    0x0\\nrbx    0x7f237706a840\\nrcx    0xffffffffffffffff\Creating wordpress-it-mueller      ... error
rsp    0x7fff898f4ad0\\nr8     0x0\\nr9     0x7fff898f4ad0\\nr10    0x8\\nr11    0x246\\nr12    0x564ed04ff990\\nr13    0x11\\nr14    0x564ecc404640\\nr15    0x0\\nrip    0x7f2376cbce97\\nrflags 0x246\\ncs     0x33\\nfs     0x0\\ngs  Creating wordpress-cert-it-mueller ... done

ERROR: for wordpress-it-mueller  Cannot start service wordpress-it-mueller: b'OCI runtime create failed: container_linux.go:345: starting container process caused "process_linux.go:430: container init caused "process_linux.go:413: running prestart hook 0 caused \"error running hook: exit status 2, stdout: , stderr: runtime/cgo: pthread_create failed: Resource temporarily unavailable\\nSIGABRT: abort\\nPC=0x7f3d844b2e97 m=0 sigcode=18446744073709551610\\n\\ngoroutine 0 [idle]:\\nruntime: unknown pc 0x7f3d844b2e97\\nstack: frame={sp:0x7ffeff965720, fp:0x0} stack=[0x7ffeff166cc0,0x7ffeff965cf0)\\n00007ffeff965620:  [...] ffffffffffffffff  ffffffffffffffff \\nruntime: unknown pc 0x7f3d844b2e97\\nstack: frame={sp:0x7ffeff965720, fp:0x0} stack=[0x7ffeff166cc0,0x7ffeff965cf0)\\n00007ffeff965620:   [...] ffffffffffffffff  ffffffffffffffff \\n\\ngoroutine 1 [running]:\\nruntime.systemstack_switch()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:311 fp=0xc00006e798 sp=0xc00006e790 pc=0x55a7e9792450\\nruntime.main()\\n\\t/usr/local/go/src/runtime/proc.go:130 +0x67 fp=0xc00006e7e0 sp=0xc00006e798 pc=0x55a7e9765cd7\\nruntime.goexit()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:1337 +0x1 fp=0xc00006e7e8 sp=0xc00006e7e0 pc=0x55a7e9794551\\n\\nrax    0x0\\nrbx    0x7f3d84860840\\nrcx    0xffffffffffffffff\\nrdx    0x0\\nrdi    0x2\\nrsi    0x7ffeff965720\\nrbp    0x55a7eb47c03d\\nrsp    0x7ffeff965720\\nr8     0x0\\Creating nextcloud                  ... done
    0x11\\nr14    0x55a7eb422640\\nr15    0x0\\nrip    0x7f3d844b2e97\\nrflags 0x246\\ncs     0x33\\nfs     0x0\\ngs     0x0\\n\""": unknown'

ERROR: for wordpress-cert  Cannot start service wordpress-cert: b'OCI runtime create failed: container_linux.go:345: starting container process caused "process_linux.go:430: container init caused "process_linux.go:413: running prestart hook 0 caused \"error running hook: exit status 2, stdout: , stderr: runtime/cgo: pthread_create failed: Resource temporarily unavailable\\nSIGABRT: abort\\nPC=0x7f5cd5db7e97 m=0 sigcode=18446744073709551610\\n\\ngoroutine 0 [idle]:\\nruntime: unknown pc 0x7f5cd5db7e97\\nstack: frame={sp:0x7ffe59e1f6c0, fp:0x0} stack=[0x7ffe59620d50,0x7ffe59e1fd80)\\n00007ffe59e1f5c0:  [...] ffffffffffffffff  ffffffffffffffff \\nruntime: unknown pc 0x7f5cd5db7e97\\nstack: frame={sp:0x7ffe59e1f6c0, fp:0x0} stack=[0x7ffe59620d50,0x7ffe59e1fd80)\\n00007ffe59e1f5c0:  [...]ffffffffffffffff  ffffffffffffffff \\n\\ngoroutine 1 [runnable, locked to thread]:\\ngithub.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus.(*Registry).Register(0xc0005e3b00, 0x55922583c640, 0xc000760b90, 0x0, 0x0)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus/registry.go:298 +0x1e6\\ngithub.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus.(*Registry).MustRegister(0xc0005e3b00, 0xc00075d000, 0x1, 0x1)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus/registry.go:403 +0x78\\ngithub.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus.MustRegister(...)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/prometheus/client_golang/prometheus/registry.go:152\\ngithub.com/docker/docker/vendor/github.com/docker/go-metrics.Register(...)\\n\\t/go/src/github.com/docker/docker/vendor/github.com/docker/go-metrics/register.go:8\\ngithub.com/docker/docker/builder/dockerfile.init.0()\\n\\t/go/src/github.com/docker/docker/builder/dockerfile/metrics.go:43 +0x2d3\\n\\ngoroutine 20 [syscall]:\\nos/signal.signal_recv(0x559222e8e556)\\n\\t/usr/local/go/src/runtime/sigqueue.go:139 +0x9e\\nos/signal.loop()\\n\\t/usr/local/go/src/os/signal/signal_unix.go:23 +0x24\\ncreated by os/signal.init.0\\n\\t/usr/local/go/src/os/signal/signal_unix.go:29 +0x43\\n\\nrax    0x0\\nrbx    0x7f5cd6165840\\nrcx    0xffffffffffffffff\\nrdx    0x0\\nrdi    0x2\\nrsi    0x7ffe59e1f6c0\\nrbp    0x559224b7603d\\nrsp    0x7ffe59e1f6c0\\nr8     0x0\\nr9     0x7ffe59e1f6c0\\nr10    0x8\\nr11    0x246\\nr12    0x5592271bd1f0\\nr13    0x11\\nr14    0x559224b1c640\\nr15    0x0\\nrip    0x7f5cd5db7e97\\nrflags 0x246\\ncs     0x33\\nfs     0x0\\ngs     0x0\\n\""": unknown'

ERROR: for nextcloud-cert  Cannot start service nextcloud-cert: b'OCI runtime create failed: container_linux.go:345: starting container process caused "process_linux.go:430: container init caused "process_linux.go:413: running prestart hook 0 caused \"error running hook: exit status 2, stdout: , stderr: runtime/cgo: pthread_create failed: Resource temporarily unavailable\\nSIGABRT: abort\\nPC=0x7f2376cbce97 m=0 sigcode=18446744073709551610\\n\\ngoroutine 0 [idle]:\\nruntime: unknown pc 0x7f2376cbce97\\nstack: frame={sp:0x7fff898f4ad0, fp:0x0} stack=[0x7fff890f6070,0x7fff898f50a0)\\n00007fff898f49d0:  [...]00007fff898f4ae8  00000000ffffffff \\n00007fff898f4af0:  00007fff898f4b40  0000564eca7254a3 <runtime.persistentalloc1+515> \\n00007fff898f4b00:  0000564ece51d0f0  0000000000000000 [...] \\nruntime: unknown pc 0x7f2376cbce97\\nstack: frame={sp:0x7fff898f4ad0, fp:0x0} stack=[0x7fff890f6070,0x7fff898f50a0)\\n00007fff898f49d0:  [...] 00007fff898f4ae8  00000000ffffffff \\n00007fff898f4af0:  00007fff898f4b40  0000564eca7254a3 <runtime.persistentalloc1+515> \\n00007fff898f4b00:  0000564ece51d0f0  0000000000000000 [...] \\n\\ngoroutine 1 [running]:\\nruntime.systemstack_switch()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:311 fp=0xc00006e798 sp=0xc00006e790 pc=0x564eca774450\\nruntime.main()\\n\\t/usr/local/go/src/runtime/proc.go:130 +0x67 fp=0xc00006e7e0 sp=0xc00006e798 pc=0x564eca747cd7\\nruntime.goexit()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:1337 +0x1 fp=0xc00006e7e8 sp=0xc00006e7e0 pc=0x564eca776551\\n\\nrax    0x0\\nrbx    0x7f237706a840\\nrcx    0xffffffffffffffff\\nrdx    0x0\\nrdi    0x2\\nrsi    0x7fff898f4ad0\\nrbp    0x564ecc45e03d\\nrsp    0x7fff898f4ad0\\nr8     [...]  0x0\\ngs     0x0\\n\""": unknown'

ERROR: for wordpress-it-mueller  Cannot start service wordpress-it-mueller: b'OCI runtime create failed: container_linux.go:345: starting container process caused "process_linux.go:430: container init caused "process_linux.go:413: running prestart hook 0 caused \"error running hook: exit status 2, stdout: , stderr: runtime/cgo: pthread_create failed: Resource temporarily unavailable\\nSIGABRT: abort\\nPC=0x7f3d844b2e97 m=0 sigcode=18446744073709551610\\n\\ngoroutine 0 [idle]:\\nruntime: unknown pc 0x7f3d844b2e97\\nstack: frame={sp:0x7ffeff965720, fp:0x0} stack=[0x7ffeff166cc0,0x7ffeff965cf0)\\n00007ffeff965620:[...] ffffffffffffffff  ffffffffffffffff \\nruntime: unknown pc 0x7f3d844b2e97\\nstack: frame={sp:0x7ffeff965720, fp:0x0} stack=[0x7ffeff166cc0,0x7ffeff965cf0)\\n00007ffeff965620:  [...] ffffffffffffffff  ffffffffffffffff \\n\\ngoroutine 1 [running]:\\nruntime.systemstack_switch()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:311 fp=0xc00006e798 sp=0xc00006e790 pc=0x55a7e9792450\\nruntime.main()\\n\\t/usr/local/go/src/runtime/proc.go:130 +0x67 fp=0xc00006e7e0 sp=0xc00006e798 pc=0x55a7e9765cd7\\nruntime.goexit()\\n\\t/usr/local/go/src/runtime/asm_amd64.s:1337 +0x1 fp=0xc00006e7e8 sp=0xc00006e7e0 pc=0x55a7e9794551\\n\\nrax    0x0\\nrbx    0x7f3d84860840\\nrcx    0xffffffffffffffff\\nrdx    0x0\\nrdi    0x2\\nrsi    0x7ffeff965720\\nrbp    0x55a7eb47c03d\\nrsp    0x7ffeff965720\\nr8     0x0\\nr9     0x7ffeff965720\\nr10    0x8\\nr11    0x246\\nr12    0x55a7ee582990\\nr13    0x11\\nr14    0x55a7eb422640\\nr15    0x0\\nrip    0x7f3d844b2e97\\nrflags 0x246\\ncs     0x33\\nfs     0x0\\ngs     0x0\\n\""": unknown'
ERROR: Encountered errors while bringing up the project.

Any ideas what i might doing wrong are very appriciated!

Source: StackOverflow