Hello, Casandro, i think the problem is here:
https://www.tbsdtv.com/forum/viewtopic.php?f=97&t=25556
Check this slolution from tbs, and report back!
For me, it works! I created 2 files in /etc/modprobe.d : dvb.conf and options-dvb.conf and paste this lines inside:
options mantis_core adapter_nr=0
options tbsecp3 adapter_nr=1,2,3,4
This is for my configuration, you must check wich driver is in use in your configuration and make right setting inside.