Trouble with Port redirection

[propolis]

Core Version: 2.0.19

Entering "Port redirection" in web interface i get error "An internal error related to a template has occurred"
Restarting server not helped.
After restarting server Firewall service was not started:
 * Starting Zentyal module: firewall                                     [fail]
or
./ebox firewall start
 * Restarting Zentyal module: firewall                                                                                                         [fail]
Can't call method "elementByName" on an undefined value at /usr/share/perl5/EBox/Firewall/IptablesHelper.pm line 315.
, so i "fixed" it with patching IptablesHelper.pm:
inserted line previous to line 217 (sub RedirectsRuleTable): next if !defined $row;
Now firewall starts successful, but i still get this error
"An internal error related to a template has occurred"