Erlang shell - no input for commands - erlang

Question

My os: arch linux. I recently installed erlang (Erlang (BEAM) emulator version 9.0.1).
When I type "erl" command I expect the erlang shell to start invoking the commands I type (for the simplest example: 2+3. should return 5)
However, after I run "erl" nothing shows up on screen. I can type anything I want, nothing is executed. Images with example are attached.
What I expect.jpg
What I got.jpg
Now I only started to learn erlang, and this is confusing. Don't know if it is some repository bug, or erlang normal behavior?
UPD: I got some custom configuration in .bashrc file:
# setup color variables
color_is_on=
color_red=
color_green=
color_yellow=
color_blue=
color_white=
color_gray=
color_bg_red=
color_off=
color_user=
if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
color_is_on=true
color_black="\[$(/usr/bin/tput setaf 0)\]"
color_red="\[$(/usr/bin/tput setaf 1)\]"
color_green="\[$(/usr/bin/tput setaf 2)\]"
color_yellow="\[$(/usr/bin/tput setaf 3)\]"
color_blue="\[$(/usr/bin/tput setaf 6)\]"
color_white="\[$(/usr/bin/tput setaf 7)\]"
color_gray="\[$(/usr/bin/tput setaf 8)\]"
color_off="\[$(/usr/bin/tput sgr0)\]"
color_error="$(/usr/bin/tput setab 1)$(/usr/bin/tput setaf 7)"
color_error_off="$(/usr/bin/tput sgr0)"
# set user color
case `id -u` in
0) color_user=$color_red ;;
*) color_user=$color_green ;;
esac
fi
function prompt_command {
# get cursor position and add new line if we're not in first column
exec < /dev/tty
local OLDSTTY=$(stty -g)
stty raw -echo min 0
echo -en "\033[6n" > /dev/tty && read -sdR CURPOS
stty $OLDSTTY
[[ ${CURPOS##*;} -gt 1 ]] && echo "${color_error}↵${color_error_off}"
# build b/w prompt for git and vertial env
[[ ! -z $GIT_BRANCH ]] && PS1_GIT=" (git: ${GIT_BRANCH})"
[[ ! -z $VIRTUAL_ENV ]] && PS1_VENV=" (venv: ${VIRTUAL_ENV#$WORKON_HOME})"
# calculate fillsize
local fillsize=$(($COLUMNS-$(printf "${USER}#${HOSTNAME}:${PWD}:${PWDNAME}${PS1_GIT}${PS1_VENV} " | wc -c | tr -d " ")))
local FILL=$color_white
while [ $fillsize -gt 0 ]; do FILL="${FILL}─"; fillsize=$(($fillsize-1)); done
FILL="${FILL}${color_off}"
# set new color prompt
PS1="${color_user}${USER}${color_off}#${color_yellow}${HOSTNAME}${color_off}:${color_white}${PWD}:${PWDNAME}${color_off}${PS1_GIT}${PS1_VENV} ${FILL}\n➜ "
}
PROMPT_COMMAND=prompt_command
After removing this configuration, erl started to work normally.