Gfilui

Error found when loading /home/user/.profile
/home/user/.profile line 20: command not found
As a result the session will not be configured correctly 
Fix the problem as soon as feasible

This is the output of cat -n /home/user/.profile:

 1 # ~/.profile: executed by the command interpreter for login shells.
 2 # This file is not read by bash(1), if ~/.bash_profile or ~/.bash_login
 3 # exists.
 4 # see /usr/share/doc/bash/examples/startup-files for examples.
 5 # the files are located in the bash-doc package.
 6 
 7 # the default umask is set in /etc/profile; for setting the umask
 8 # for ssh logins, install and configure the libpam-umask package.
 9 #umask 022
10 
11 # if running bash
12 if [ -n "$BASH_VERSION" ]; then
13 # include .bashrc if it exists
14 if [ -f "$HOME/.bashrc" ]; then
15 . "$HOME/.bashrc"
16 fi
17 fi
18 
19 # set PATH so it includes user's private bin directories
20 if [ -d "$HOME/bin"] ; then
21 PATH="$HOME/BIN:$PATH"
22 fi
23 
24 #Make JAVA_HOME first...
25 export JAVA_HOME=/home/yashkanna/.javajre/jre1.8.0_161
26 PATH="$PATH:$JAVA_HOME/bin"

What should I do?

There is a space missing between "$HOME/bin" and ] in line 20, on Line 21 it should be "$HOME/bin".

Replace

if [ -d "$HOME/bin"] ; then
 PATH="$HOME/BIN:$PATH"
fi

with

if [ -d "$HOME/bin" ] ; then
 PATH="$HOME/bin:$PATH"
fi