What is the problem?
Printing from SD" to "Error: Probing failed"
Changing monitoring state from "Error: Probing failed" to "Offline (Error: Probing failed)"
Connection closed, closing down monitor
What did you already try to solve it?
serial.log or output on terminal tab, browser error console ...)
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ...)
OctoPrint 1.3.11, Octp PI .15.1, Ender 3 Pro, EZABL, EZ board Marlin 2.0 32 bit board, Windows 10