IPTables cant start/stop from UI

When I try to stop iptables from hestia UI, I get circle and I cant move to another hestiacp pages until i make full server reboot. So, I try to start and stop iptables from console. And suddenly I get this:

When i try to call

sudo /usr/local/hestia/bin/v-stop-service iptables

I get error

/usr/local/hestia/bin/v-stop-firewall: line 52: warning: command substitution: ignored null byte in input

Same if I try to call

sudo /usr/local/hestia/bin/v-start-service iptables

I get error

/usr/local/hestia/bin/v-update-firewall: line 156: warning: command substitution: ignored null byte in input

Both commands in console never returned promt again and I need press ctl+c to break command execution. And I thing that both problems is connected to each other: never ended circle in UI and never ended commands in console.

  • Hestia Control Panel v1.8.12
  • Operating System Ubuntu 22.04 (x86_64)