Virtual machine is in imperfect status after 2 days of creation

I created the Virtual Machine last Friday. I installed cloud init. It was fine then. Today, it is in some unpredictable state. It is Ubuntu version 18.06 After I logged-in it was, when I run the kubectl get nodesm I am getting the below errors. Could not confirm whether this system has issues what actually the problem is:

fatal error: unexpected signal during runtime execution
[signal SIGBUS: bus error code=0x2 addr=0x761a000 pc=0x1062cae]

runtime stack:
runtime.throw(0x61355ce, 0x2a)
    /usr/local/go/src/runtime/panic.go:774 +0x72
runtime.sigpanic()
    /usr/local/go/src/runtime/signal_unix.go:378 +0x4e2
runtime.gentraceback(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xc000000180, 0x0, 0x0, 0x7fffffff, 0x62b6548, 0x3ffe9cff2b0, 0x0, ...)
    /usr/local/go/src/runtime/traceback.go:189 +0x1ee
runtime.copystack(0xc000000180, 0x20000, 0x9b7eda0)
    /usr/local/go/src/runtime/stack.go:886 +0x236
runtime.shrinkstack(0xc000000180)
    /usr/local/go/src/runtime/stack.go:1132 +0x100
runtime.scanstack(0xc000000180, 0xc000085c70)
    /usr/local/go/src/runtime/mgcmark.go:690 +0x84
runtime.scang(0xc000000180, 0xc000085c70)
    /usr/local/go/src/runtime/proc.go:886 +0x228
runtime.markroot.func1()
    /usr/local/go/src/runtime/mgcmark.go:221 +0x8e
runtime.markroot(0xc000085c70, 0x700000000)
    /usr/local/go/src/runtime/mgcmark.go:202 +0x366
runtime.gcDrainN(0xc000085c70, 0x10000, 0x1024d86)
    /usr/local/go/src/runtime/mgcmark.go:1035 +0x122
runtime.gcAssistAlloc1(0xc000000180, 0x10000)
    /usr/local/go/src/runtime/mgcmark.go:512 +0xf8
runtime.gcAssistAlloc.func1()
    /usr/local/go/src/runtime/mgcmark.go:423 +0x30
runtime.systemstack(0x0)
    /usr/local/go/src/runtime/asm_s390x.s:293 +0x9c
runtime.mstart()
    /usr/local/go/src/runtime/proc.go:1146

goroutine 1 [GC assist marking (scan), locked to thread]:
runtime.systemstack_switch()
    /usr/local/go/src/runtime/asm_s390x.s:246 +0x10 fp=0xc00070f658 sp=0xc00070f650 pc=0x106ddc0
runtime.gcAssistAlloc(0xc000000180)
    /usr/local/go/src/runtime/mgcmark.go:422 +0x176 fp=0xc00070f6b0 sp=0xc00070f658 pc=0x10275e6
runtime.mallocgc(0x10, 0x58fe320, 0x10000c0006e6000, 0x2)
    /usr/local/go/src/runtime/malloc.go:926 +0xac2 fp=0xc00070f758 sp=0xc00070f6b0 pc=0x1011402
runtime.newobject(0x58fe320, 0x16)
    /usr/local/go/src/runtime/malloc.go:1151 +0x34 fp=0xc00070f780 sp=0xc00070f758 pc=0x10116d4
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/conversion.verifyConversionFunctionSignature(0x6e33520, 0x55f8b00, 0x13, 0x6e33520)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/conversion/converter.go:349 +0x3dc fp=0xc00070f850 sp=0xc00070f780 pc=0x15e579c
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/conversion.ConversionFuncs.Add(0xc000528a50, 0xc000528a80, 0xc00070f948, 0x1, 0x1, 0x0, 0x0)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/conversion/converter.go:173 +0x142 fp=0xc00070f8f8 sp=0xc00070f850 pc=0x15e3f62
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/conversion.(*Converter).RegisterConversionFunc(...)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/conversion/converter.go:376
k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime.(*Scheme).AddConversionFuncs(0xc00016a070, 0xc00070f990, 0x1e, 0x1e, 0x1609630, 0xc0006039f8)
    /go/src/k8s.io/kubernetes/_output/dockerized/go/src/k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime/scheme.go:343 +0xaa fp=0xc00070f958 sp=0xc00070f8f8 pc=0x160b13a
fatal error: unexpected signal during runtime execution
panic during panic
[signal SIGBUS: bus error code=0x2 addr=0x761a000 pc=0x1062cae]

Is it system crashed or something else.