OSError: exception: access violation reading 0xFFFFFFFF9419E570 in windows 10 64bite

[EchoBlam]

D:\Programs\Python\Python37\python.exe -B "C:/Program Files/JetBrains/PyCharm/plugins/python-ce/helpers/pydev/pydevd.py" --multiprocess --qt-support=auto --client 127.0.0.1 --port 54854 --file C:\Users\lenovo\Desktop\toxygen-master\toxygen\main.py
Connected to pydev debugger (build 233.13135.95)
C:\Users\lenovo\Desktop\toxygen-master\toxygen
Traceback (most recent call last):
File "C:/Program Files/JetBrains/PyCharm/plugins/python-ce/helpers/pydev/pydevd.py", line 1534, in _exec
pydev_imports.execfile(file, globals, locals) # execute the script
File "C:\Program Files\JetBrains\PyCharm\plugins\python-ce\helpers\pydev_pydev_imps_pydev_execfile.py", line 18, in execfile
exec(compile(contents+"\n", file, 'exec'), glob, loc)
File "C:\Users\lenovo\Desktop\toxygen-master\toxygen\main.py", line 487, in
main()
File "C:\Users\lenovo\Desktop\toxygen-master\toxygen\main.py", line 483, in main
toxygen.main()
File "C:\Users\lenovo\Desktop\toxygen-master\toxygen\main.py", line 108, in main
self.tox.self_set_name(bytes(_login.name, 'utf-8') if _login.name else b'Toxygen User')
File "C:\Users\lenovo\Desktop\toxygen-master\toxygen\tox.py", line 356, in self_set_name
c_size_t(len(name)), byref(tox_err_set_info))
OSError: exception: access violation reading 0xFFFFFFFF9419E570