Solved by:

xtables-addons-common: 3.13-1ubuntu2
xtables-addons-dkms: 3.13-1ubuntu2

Preparing to unpack .../xtables-addons-common_3.13-1ubuntu2_amd64.deb ...
Unpacking xtables-addons-common (3.13-1ubuntu2) over (3.13-1) ...
Preparing to unpack .../xtables-addons-dkms_3.13-1ubuntu2_all.deb ...
...
Building initial module for 5.11.0-11-generic
Done.

xt_ACCOUNT.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

compat_xtables.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_pknock.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_CHAOS.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_DELUDE.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_DHCPMAC.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_DNETMAP.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_ECHO.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_IPMARK.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_LOGMARK.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_PROTO.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_SYSRQ.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_TARPIT.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_condition.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_fuzzy.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_geoip.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_iface.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_ipp2p.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_ipv4options.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_length2.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_lscan.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_psd.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

xt_quota2.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/5.11.0-11-generic/updates/dkms/

depmod....

DKMS: install completed.