T3200M system log showing UPnP error: 713 "SpecifiedArrayIndexInvalid"

Hi guys,

I have fiber 150 with T3200M router. Recently we added Telus white boosters and the setup has been working just fine. I disabled the 5GHZ router radio but still enable the 2.4GHZ for smart bulbs, etc. 

After three days of using the boosters, we noticed that Actiontec router has rebooted twice (around 4am) over the last two nights. While previously without boosters, the T3200M router has gone on for weeks at a time without reboots. Not sure if the boosters are somehow causing the router to reboot.

Another thing is that when I went to the status monitor and looked at the system log, I saw the below error literally happening every single minute. 

Is there something that is going on or is that something that is perfectly normal and I can ignore those errors?

I only have one router (T3200M) and 3 Boosters, with one connected via ethernet. Port Bridging is off.

Any insights would be much appreciated!

Thanks

Mike