[Wien] qtl printed output issue

[pluto]

Dear All,

When running "x qtl" I am getting an error message printed in Wien 23.1 
edition, see below. I tested this in couple of different test cases, 
with and without FM and SOC, always the same error.

It seems this error message does not affect anything. The case.qtl file 
is created, and I can use "spaghetti" and "plot bandstructure" to plot 
the "fat bands" in w2web and everything looks fine.

Can I ignore the error?

bash-5.1$ x qtl -up -so
FERMI - Error
0.015u 0.003s 0:00.01 100.0%	0+0k 0+552io 0pf+0w
  QTL END
28.708u 0.507s 0:08.70 335.6%	0+0k 0+53792io 13pf+0w

Best,
Lukasz