Getting spammed with kernel warn messages, VPN and Nginx server no longer working

Hey guys, lately I've noticed my VPN and DDNS is no longer working, it just out of no where completely became inaccessible outside of my home (I have a NextCloud instance on a computer that's public facing, separated in docker containers) and I check the logs on the router and notice these errors:

Sun Mar 13 00:59:10 2022 kern.warn kernel: [195625.747881] REJECT IOTZone in: IN=br-iot OUT= MAC=98:da:c4:7c:0d:23:dc:a6:32:99:de:d8:08:00 SRC= LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=25302 DF PROTO=TCP SPT=22000 DPT=22000 WINDOW=64240 RES=0x00 SYN URGP=0

What do these errors mean? I still get them even after I completely closed the ports for nginx on the router's firewall. My router's an Archer A7 V5 running OpenWrt 19.07.7 r11306-c4a6851c72

That error means what it says:

Your device blocked traffic from in your IoT network to the IP you redacted.

The other stuff you're describing isn't directly related.

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