using XTREAM CODES always causes immediate exit from hypnotix

[mariosbbs]

Hello, this problem isn't new (using older and newer Linux MINT 64, now the version is 21.3 newly installed )
also after a fresh LinuxMINT installation, Hypnotix works without problems using the preinstalled free list
also works if I use every other m3u file or link

but if I want to use XTREAM CODES this always happens. I tried several accounts/providers and nothing changes.
once you add an xtream codes account the hypnotix window appears for two seconds and then closes
I can’t even find configuration files to try to manually remove or modify the XTREAM provider
(Can anyone at least tell me where the configuration files are hidden ?)
thanks

this is output starting HYPNOTIX using console

(hypnotix.py:3045): Gdk-ERROR **: 12:22:49.667: The program 'hypnotix.py' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadLength (poly request too large or internal Xlib length erro'.
(Details: serial 2858 error_code 16 request_code 4 (core protocol) minor_code 0)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the GDK_SYNCHRONIZE environment
variable to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)

[superolmo]

That error message seems to be a system error.
It might be related to fonts, see here https://unix.stackexchange.com/questions/629281/gitk-crashes-when-viewing-commit-containing-emoji-x-error-of-failed-request-ba
In the above link they recommend to install unifont.