My USB wall charger won’t work!!!

Well I have many apple products in my house hold... Therefore I have many USB wall chargers, and never did one just stop working, especially out of nowhere...

I was trying to charge my father’s iPhone 5s, but it just wouldn’t charge. I tried going to different outlets, I tried using different cord chargers and nothing. Until I went to go get another USB wall charger (the cube that plugs into the wall) once I got it, I tried the different one that I had, the phone started to charge.

After that I tried all those same steps with my phone, the iPhone X and the exact same thing happened. Something is wrong with my USB wall charger (the cube) thank god I had backups, but what shall I do now?...