Problem:

root@debian:~# chromium
[1:1:0614/091456:FATAL:sandbox_linux.cc(178)] Check failed: sandbox::Credentials::MoveToNewUserNS(). 
#0 0x0000b0587b0d 
#1 0x0000b05a01c0 
#2 0x0000b4c6cf33 
#3 0x0000b34d75dc

Solution:

root@debian:~# chromium --user-data-dir=/root/chromium --no-sandbox