GamingNova1337

I am running a server with my friends and it has worked perfectly until a few days ago when every time I open the server I get this error: "[LanServerPinger #1/WARN] [minecraft/LanServerPinger]: LanServerPinger: Network is unreachable: no further information" I have not updated anything or changed anything in the files or with my internet connection. I can still join via lan but no one can join via IP, including me. I run ngrok for IP but this message appears even without ngrok. I have restarted my computer and the server several times and I have restarted my router to no avail. Any idea on where to start unraveling this mess?