It's not booping...

[CookieXD]

Boop 1.4.0 itself doesn't shows any error, but FBI 2.4.12 does:

After FBI shows this error message, Boop tells me:" Yay! Booping complete! "

I am using an Windows 10 machine with outdated hardware and broken Taskbar+WindowsApps.
I am using an new 3ds with LumaCFW 8.1.1 Mod by kasai07 with Boot9strap 1.3 the lastest version of FBI.

Hopefully it will be fixed...

[CCF100]

I know this isn't helpful, but how did you get the custom font?

[CookieXD]

I searched in google for: 3ds fonts cia
downloaded some and installed one.

[CookieXD]

Seems like it was a problem with the windows 10 firewall...
fixed it! Any workarounds yet?

[miltoncandelero]

Well. Disable your firewall seems a good workaround

Any other workaround of a firewall on my side of things would be malware.