UnicodeEncodeError: 'ascii' codec can't encode characters in position

[freeload101]

Describe the bug
UnicodeEncodeError: 'ascii' codec can't encode characters

[A clear and concise description of what the bug is.]
cat txt.txt
Traceback (most recent call last):
File "/usr/local/bin/bpytop", line 11, in
sys.exit(main())
File "/usr/local/lib/python3.6/dist-packages/bpytop.py", line 4872, in main
Init.start()
File "/usr/local/lib/python3.6/dist-packages/bpytop.py", line 4414, in start
Draw.out("banner")
File "/usr/local/lib/python3.6/dist-packages/bpytop.py", line 955, in out
cls.now(out)
File "/usr/local/lib/python3.6/dist-packages/bpytop.py", line 914, in now
print(*args, sep="", end="", flush=True)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 26-31: ordinal not in range(128)

To Reproduce

[Steps to reproduce the behavior:]
bpytop

Expected behavior

[A clear and concise description of what you expected to happen.]

Screenshots

[If applicable, add screenshots to help explain your problem.]

Info (please complete the following information):

• bpytop version: bpytop -v

• bpytop version: 1.0.54

• psutil version: bpytop -v (version 5.7.0 or above is required)
  psutil version: 5.9.2

• (Linux) Linux distribution and version:
  "18.04.6 LTS (Bionic Beaver)"

• Terminal used:
  any

• Font used:
  any

• Python version, python3 --version (version 3.6 or above is required):
  Python 3.6.9

Additional context

contents of ~/.config/bpytop/error.log

(try running bpytop with --debug flag if error.log is empty)