who can tell me what is the wrong

[daolin_qu]

ERROR: Fatal log error: conversion of log message to UTF-16 failed.
ERROR: Fatal log error: conversion of log message to UTF-16 failed.
ERROR: Fatal log error: conversion of log message to UTF-16 failed.
ERROR: Fatal log error: conversion of log message to UTF-16 failed.
ERROR: Can't close HDF5 file.
ERROR: Fatal log error: conversion of log message to UTF-16 failed.
ERROR: Simulation '20HZ' failed on 2021-Apr-11 11:11:04
ERROR: The solver process returned an error code:

[Sylvain]

This could be due to Chinese characters in some settings or simulation names that are not handled properly. You could try to change those settings/names to use ascii characters only and see if the problem persists?

[daolin_qu]

thank you bro，I have found what the wrong ,I have simulated too many times, causing the D drive to run out of space. I cleaned it up and the problem was solved.