issue on initdb

gistfile1.txt

sekondquad@axle:~/minmax15$ bin/initdb -D /data/sekondquad/AXLE/sekondquad/minmax15/
The files belonging to this database system will be owned by user "sekondquad".
This user must also own the server process.

initdb: invalid locale settings; check LANG and LC_* environment variables
sekondquad@axle:~/minmax15$ locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_GB.UTF-8
LANGUAGE=en_GB:en
LC_CTYPE=UTF-8
LC_NUMERIC="en_GB.UTF-8"
LC_TIME="en_GB.UTF-8"
LC_COLLATE="en_GB.UTF-8"
LC_MONETARY="en_GB.UTF-8"
LC_MESSAGES="en_GB.UTF-8"
LC_PAPER="en_GB.UTF-8"
LC_NAME="en_GB.UTF-8"
LC_ADDRESS="en_GB.UTF-8"
LC_TELEPHONE="en_GB.UTF-8"
LC_MEASUREMENT="en_GB.UTF-8"
LC_IDENTIFICATION="en_GB.UTF-8"
LC_ALL=