[Koha] Apache configuration warning

[Beda Szukics]

Hi all

I just updated to Koha 16.11.01

apache2ctl configtest gives me:

[Tue Jan 10 09:42:37.044816 2017] [core:warn] [pid 1986] AH00111: Config
variable ${instance} is not defined
[Tue Jan 10 09:42:37.044877 2017] [core:warn] [pid 1986] AH00111: Config
variable ${instance} is not defined
Syntax OK

I hadn't that bevore. Is this a problem?

Beda