The /usr/sbin/rpc.mountd process failed to start

[ledrsnet]

root@nfs-server-alpine-65bb5fbdb6-26gg5:/ # ps -ef
PID USER TIME COMMAND
1 root 0:00 {nfsd.sh} /bin/bash /usr/bin/nfsd.sh
16 rpc 0:00 /sbin/rpcbind -w
385 root 0:00 sleep 2
386 root 0:00 bash
392 root 0:00 ps -ef

The /usr/sbin/rpc.mountd --debug all --no-udp --no-nfs-version 2 --no-nfs-version 3 process failed to start

[ledrsnet]

Writing SHARED_DIRECTORY to /etc/exports file
The PERMITTED environment variable is unset or null, defaulting to '*'.
This means any client can mount.
The READ_ONLY environment variable is unset or null, defaulting to 'rw'.
Clients have read/write access.
The SYNC environment variable is unset or null, defaulting to 'async' mode.
Writes will not be immediately written to disk.
Displaying /etc/exports contents:
/exports *(rw,fsid=0,async,no_subtree_check,no_auth_nlm,insecure,no_root_squash)

Starting rpcbind...
Displaying rpcbind status...
program version netid address service owner
100000 4 tcp6 ::.0.111 - superuser
100000 3 tcp6 ::.0.111 - superuser
100000 4 udp6 ::.0.111 - superuser
100000 3 udp6 ::.0.111 - superuser
100000 4 tcp 0.0.0.0.0.111 - superuser
100000 3 tcp 0.0.0.0.0.111 - superuser
100000 2 tcp 0.0.0.0.0.111 - superuser
100000 4 udp 0.0.0.0.0.111 - superuser
100000 3 udp 0.0.0.0.0.111 - superuser
100000 2 udp 0.0.0.0.0.111 - superuser
100000 4 local /var/run/rpcbind.sock - superuser
100000 3 local /var/run/rpcbind.sock - superuser
Starting NFS in the background...
rpc.nfsd: knfsd is currently down
rpc.nfsd: Writing version string to kernel: -2 -3
rpc.nfsd: Created AF_INET TCP socket.
rpc.nfsd: Created AF_INET6 TCP socket.
Exporting File System...
exporting *:/exports
/exports
Starting Mountd in the background...These
Startup of NFS failed, sleeping for 2s, then retrying...
Displaying /etc/exports contents:
/exports *(rw,fsid=0,async,no_subtree_check,no_auth_nlm,insecure,no_root_squash)