System crashes creating/modifying users data

ESX version: 6.5
Nextcloud version: 19
OS: Ubuntu 20.04

I configured the LDAP with my AD and disabled 43 unused users from the list. After that, the system started to crash when I try to create a new user or within the user’s cloud space when I try to delete all its demo files. Crashing is aleatory, not all the time happens.

I removed LDAP confuration and also disabled its app, rebooted the VM but the crash still happens.

In settings -> users -> disabled users , it shows the number 43 without user list. And in logs I found this:
Total user count was negative (users: 22, disabled: 43)

Desktop sync works perfectly, most users sync over 90GiB with no issue. So far, if I don’t do anything related to user maganement I’ve not issue at all.

I looked here and found nothing relevant:
/var/log/apache2/other_vhosts_access.log
/var/log/nextcloud/nextcloud.log
/var/log/php7.4-fpm.log

/var/log/syslog I found this:

level=info msg=“starting containerd” revision= version=1.3.3-0ubuntu2
level=info msg=“loading plugin “io.containerd.content.v1.content”…” type=io.containerd.content.v1
level=info msg=“loading plugin “io.containerd.snapshotter.v1.btrfs”…” type=io.containerd.snapshotter.v1
level=info msg=“skip loading plugin “io.containerd.snapshotter.v1.btrfs”…” error=“path /var/lib/containerd/io.containerd.snapshotter.v1.btrfs (ext4) must be a btrfs filesystem to be used with the btrfs snapshotter: skip plugin” type=io.containerd.snapshotter.v1
level=info msg=“loading plugin “io.containerd.snapshotter.v1.devmapper”…” type=io.containerd.snapshotter.v1
level=warning msg=“failed to load plugin io.containerd.snapshotter.v1.devmapper” error=“devmapper not configured”
level=info msg=“loading plugin “io.containerd.snapshotter.v1.aufs”…” type=io.containerd.snapshotter.v1
level=info msg=“loading plugin “io.containerd.snapshotter.v1.native”…” type=io.containerd.snapshotter.v1
level=info msg=“loading plugin “io.containerd.snapshotter.v1.overlayfs”…” type=io.containerd.snapshotter.v1
level=info msg=“loading plugin “io.containerd.snapshotter.v1.zfs”…” type=io.containerd.snapshotter.v1
level=info msg=“skip loading plugin “io.containerd.snapshotter.v1.zfs”…” error=“path /var/lib/containerd/io.containerd.snapshotter.v1.zfs must be a zfs filesystem to be used with the zfs snapshotter: skip plugin” type=io.containerd.snapshotter.v1
level=info msg=“loading plugin “io.containerd.metadata.v1.bolt”…” type=io.containerd.metadata.v1
level=warning msg=“could not use snapshotter devmapper in metadata plugin” error=“devmapper not configured”

level=info msg=“Start cri plugin with config {PluginConfig:{ContainerdConfig:{Snapshotter:overlayfs DefaultRuntimeName:runc DefaultRuntime:{Type: Engine: PodAnnotations:[] Root: Options: PrivilegedWithoutHostDevices:false} UntrustedWorkloadRuntime:{Type: Engine: PodAnnotations:[] Root: Options: PrivilegedWithoutHostDevices:false} Runtimes:map[runc:{Type:io.containerd.runc.v1 Engine: PodAnnotations:[] Root: Options: PrivilegedWithoutHostDevices:false}] NoPivot:false} CniConfig:{NetworkPluginBinDir:/opt/cni/bin NetworkPluginConfDir:/etc/cni/net.d NetworkPluginMaxConfNum:1 NetworkPluginConfTemplate:} Registry:{Mirrors:map[docker.io:{Endpoints:[https://registry-1.docker.io]}] Configs:map[] Auths:map[]} DisableTCPService:true StreamServerAddress:127.0.0.1 StreamServerPort:0 StreamIdleTimeout:4h0m0s EnableSelinux:false SandboxImage:k8s.gcr.io/pause:3.1 StatsCollectPeriod:10 SystemdCgroup:false EnableTLSStreaming:false X509KeyPairStreaming:{TLSCertFile: TLSKeyFile:} MaxContainerLogLineSize:16384 DisableCgroup:false DisableApparmor:false RestrictOOMScoreAdj:false MaxConcurrentDownloads:3 DisableProcMount:false} ContainerdRootDir:/var/lib/containerd ContainerdEndpoint:/run/containerd/containerd.sock RootDir:/var/lib/containerd/io.containerd.grpc.v1.cri StateDir:/run/containerd/io.containerd.grpc.v1.cri}”
level=info msg=“Connect containerd service”
level=info msg=“Get image filesystem path “/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs””
level=error msg=“Failed to load cni during init, please check CRI plugin status before setting up network for pods” error=“cni config load failed: no network config found in /etc/cni/net.d: cni plugin not initialized: failed to load cni config”
level=info msg=“loading plugin “io.containerd.grpc.v1.introspection”…” type=io.containerd.grpc.v1
level=info msg=“Start subscribing containerd event”

Could these errors be related with my problem?
What else can I review?

Thanks in advance