WLED goes offline every few days and it crashes

I have WLED install on a ESP8266 NodeMCU and every few days the app is reporting my WLED as being offline. The only way to resolve the issue is to switch off my ESP device via the plug switch, leave it for a minute and then switch back on. WLED then comes back online and its then o.k. until a few days later until the same problem occurs. It’s as if the ESP is crashing? I am running the ESP board with 140 LED’s but I am using a 10 amp power supply so amps aren’t the problem. Plenty of juice going to the ESP board to.

WLED Build 2212222