Unicode Encode Error

[NMedvesky]

This is the error I keep getting

UnicodeEncodeError: 'charmap' codec can't encode character '\u0399' in position 54: character maps to

Lancer is working for me with simpler programs but breaks and gives me the error on more complex programs
And the example program does not even work it just gives me the error

here is the example I tried

-- start of program --

function that adds two numbers

def addition(a: int, b: int) -> int:

# find sum
result = a + b

# return the sum
return result

if name == 'main':
print("Sum of 1 and 3 is %s" % addition(1, 3))

-- end of program --

I'm using python 3.9.7
and running it on windows 10

[NMedvesky]

github is displaying the example a bit weird here is the link to the example
https://github.com/LeviBorodenko/lancer#Example

[leetfin]

same, it's not working at all even on examples