Removing iptables breaks access to forris/luci

Turris Omnia - rtrom01
Turris OS 3.9.6
Kernel 4.4.119-082ea0f4a4e204b99821bedcb349ed54-0

having removed '*iptables*' breaks access to forris/luci gui. Router is still reachable throgh SSH.

Access to LAN/WAN/VPN is not impeded and neither should be access to the router via forris/luci.