Type Error: bad operand type for unary +: 'str'

[ThomasL]

I'm assuming that's where the issue is

The error message gives you detailed information where and what is wrong.
So when asking for help providing this error message is a vital thing to do.
Without we can only guess that likely here

                elif item == 1:
                    colored_row += Fore.GREEN + ' X ' + + Style.RESET_ALL
                elif item == 2:
                    colored_row += Fore.MAGENTA + ' O ' + + Style.RESET_ALL

you need to convert the constants Fore.<color> and Style.RESET_ALL into strings
OR if these are strings than the error is due to the double + + in these lines.

                elif item == 1:
                    colored_row += str(Fore.GREEN) + ' X ' + str(Style.RESET_ALL)
                elif item == 2:
                    colored_row += str(Fore.MAGENTA) + ' O ' + str(Style.RESET_ALL)