Redmine

Hi, last weekend my redmine web site could not be started

error log (Details)
libmysqlclient_r.so.16: cannot open shared object file: No such file or directory - /usr/local/rvm/gems/ruby-2.1.0/extensions/x86_64-linux/2.1.0/mysql2-0.3.21/mysql2/mysql2.so (LoadError)
/usr/local/rvm/gems/ruby-2.1.0/gems/mysql2-0.3.21/lib/mysql2.rb:31:in `require'
/usr/local/rvm/gems/ruby-2.1.0/gems/mysql2-0.3.21/lib/mysql2.rb:31:in `<top (required)>'
/usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib/bundler/runtime.rb:91:in `require'
/usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib/bundler/runtime.rb:91:in `block (2 levels) in require'
/usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib/bundler/runtime.rb:86:in `each'
/usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib/bundler/runtime.rb:86:in `block in require'
/usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib/bundler/runtime.rb:75:in `each'
/usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib/bundler/runtime.rb:75:in `require'
/usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib/bundler.rb:107:in `require'
/home/redminehome/redmine-3.3.2/config/application.rb:5:in `<top (required)>'
/home/redminehome/redmine-3.3.2/config/environment.rb:2:in `require'
/home/redminehome/redmine-3.3.2/config/environment.rb:2:in `<top (required)>'
config.ru:3:in `require'
config.ru:3:in `block in <main>'
/usr/local/rvm/gems/ruby-2.1.0/gems/rack-1.6.5/lib/rack/builder.rb:55:in `instance_eval'
/usr/local/rvm/gems/ruby-2.1.0/gems/rack-1.6.5/lib/rack/builder.rb:55:in `initialize'
config.ru:1:in `new'
config.ru:1:in `<main>'
/usr/local/rvm/gems/ruby-2.1.0/gems/passenger-5.1.2/src/helper-scripts/rack-preloader.rb:110:in `eval'
/usr/local/rvm/gems/ruby-2.1.0/gems/passenger-5.1.2/src/helper-scripts/rack-preloader.rb:110:in `preload_app'
/usr/local/rvm/gems/ruby-2.1.0/gems/passenger-5.1.2/src/helper-scripts/rack-preloader.rb:156:in `<module:App>'
/usr/local/rvm/gems/ruby-2.1.0/gems/passenger-5.1.2/src/helper-scripts/rack-preloader.rb:30:in `<module:PhusionPassenger>'
/usr/local/rvm/gems/ruby-2.1.0/gems/passenger-5.1.2/src/helper-scripts/rack-preloader.rb:29:in `<main>'

System Information
Application root
/home/redminehome/redmine-3.3.2
Environment (value of RAILS_ENV, RACK_ENV, WSGI_ENV, NODE_ENV and PASSENGER_APP_ENV)
production
Ruby interpreter command
/usr/local/rvm/gems/ruby-2.1.0/wrappers/ruby
User and groups
uid=536(redminehome) gid=537(redminehome) groups=537(redminehome)
Environment variables
HOSTNAME = genexon.co.kr
rvm_bin_path = /usr/local/rvm/bin
GEM_HOME = /usr/local/rvm/gems/ruby-2.1.0
TERM = linux
SHELL = /bin/bash
HISTSIZE = 50000
IRBRC = /usr/local/rvm/rubies/ruby-2.1.0/.irbrc
PYTHONUNBUFFERED = 1
PASSENGER_DEBUG_DIR = /tmp/passenger.spawn-debug.XXXXZB1knp
QTDIR = /usr/lib64/qt-3.3
QTINC = /usr/lib64/qt-3.3/include
MY_RUBY_HOME = /usr/local/rvm/rubies/ruby-2.1.0
ANT_HOME = /usr/local/apache-ant-1.9.6
LC_ALL = ko_KR.UTF-8
USER = redminehome
system_type = Linux
rvm_path = /usr/local/rvm
IN_PASSENGER = 1
RACK_ENV = production
PASSENGER_USE_FEEDBACK_FD = true
rvm_prefix = /usr/local
PATH = /usr/local/rvm/gems/ruby-2.1.0/bin:/usr/local/rvm/gems/ruby-2.1.0@global/bin:/usr/local/rvm/rubies/ruby-2.1.0/bin:/usr/lib64/qt-3.3/bin:/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:/usr/local/rvm/bin:/usr/local/apache-ant-1.9.6/bin:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.79.x86_64/bin:/home/redminehome/bin
MAIL = /var/spool/mail/redminehome
WSGI_ENV = production
runlevel = 3
RUNLEVEL = 3
LANGSH_SOURCED = 1
PWD = /home/redminehome/redmine-3.3.2
JAVA_HOME = /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.79.x86_64
LANG = ko_KR.UTF-8
KDE_IS_PRELINKED = 1
MODULEPATH = /usr/share/Modules/modulefiles:/etc/modulefiles
NODE_PATH = /usr/local/rvm/gems/ruby-2.1.0/gems/passenger-5.1.2/src/nodejs_supportlib
KDEDIRS = /usr
LOADEDMODULES =
previous = N
PREVLEVEL = N
_system_arch = x86_64
NODE_ENV = production
_system_version = 6
CONSOLETYPE = vt
HISTCONTROL = ignoredups
rvm_version = 1.28.0 (latest)
SHLVL = 3
HOME = /home/redminehome
RAILS_ENV = production
UPSTART_INSTANCE =
UPSTART_EVENTS = runlevel
SERVER_SOFTWARE = Apache/2.2.15 (Unix) DAV/2 mod_jk/1.2.40 PHP/5.6.11 SVN/1.6.11 Phusion_Passenger/5.1.2
LOGNAME = redminehome
CVS_RSH = ssh
QTLIB = /usr/lib64/qt-3.3/lib
GEM_PATH = /usr/local/rvm/gems/ruby-2.1.0:/usr/local/rvm/gems/ruby-2.1.0@global
MODULESHOME = /usr/share/Modules
LESSOPEN = ||/usr/bin/lesspipe.sh %s
PASSENGER_APP_ENV = production
UPSTART_JOB = rc
RUBY_VERSION = ruby-2.1.0
G_BROKEN_FILENAMES = 1
_system_name = CentOS
HISTTIMEFORMAT = %Y-%m-%d%H:%M:%S
BASH_FUNC_module() = () { eval `/usr/bin/modulecmd bash $*`
}
BUNDLER_ORIG_PATH = /usr/local/rvm/gems/ruby-2.1.0/bin:/usr/local/rvm/gems/ruby-2.1.0@global/bin:/usr/local/rvm/rubies/ruby-2.1.0/bin:/usr/local/rvm/gems/ruby-2.1.0/bin:/usr/local/rvm/gems/ruby-2.1.0@global/bin:/usr/local/rvm/rubies/ruby-2.1.0/bin:/usr/lib64/qt-3.3/bin:/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:/usr/local/rvm/bin:/usr/local/apache-ant-1.9.6/bin:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.79.x86_64/bin:/home/redminehome/bin
BUNDLER_ORIG_GEM_PATH = /usr/local/rvm/gems/ruby-2.1.0:/usr/local/rvm/gems/ruby-2.1.0@global
BUNDLE_BIN_PATH = /usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/exe/bundle
BUNDLE_GEMFILE = /home/redminehome/redmine-3.3.2/Gemfile
BUNDLER_VERSION = 1.14.4
RUBYOPT = -rbundler/setup
RUBYLIB = /usr/local/rvm/gems/ruby-2.1.0/gems/bundler-1.14.4/lib

Activated Ruby gems
bundler => 1.14.4
io-console => 0.4.2
psych => 2.0.2
rake => 12.0.0
i18n => 0.8.0
json => 1.8.6
minitest => 5.10.1
thread_safe => 0.3.5
tzinfo => 1.2.2
activesupport => 4.2.7.1
builder => 3.2.3
erubis => 2.7.0
mini_portile2 => 2.1.0
nokogiri => 1.7.0.1
rails-deprecated_sanitizer => 1.0.3
rails-dom-testing => 1.0.8
loofah => 2.0.3
rails-html-sanitizer => 1.0.3
actionview => 4.2.7.1
rack => 1.6.5
rack-test => 0.6.3
actionpack => 4.2.7.1
globalid => 0.3.7
activejob => 4.2.7.1
mime-types-data => 3.2016.0521
mime-types => 3.1
mail => 2.6.4
actionmailer => 4.2.7.1
actionpack-action_caching => 1.2.0
actionpack-xml_parser => 1.0.2
activemodel => 4.2.7.1
arel => 6.0.4
activerecord => 4.2.7.1
public_suffix => 2.0.5
addressable => 2.5.0
climate_control => 0.1.0
cocaine => 0.5.8
coderay => 1.1.1
concurrent-ruby => 1.0.4
css_parser => 1.4.8
htmlentities => 4.3.1
thor => 0.19.4
railties => 4.2.7.1
jquery-rails => 3.1.4
kaminari-core => 1.0.1
kaminari-actionview => 1.0.1
kaminari-activerecord => 1.0.1
kaminari => 1.0.1
mimemagic => 0.3.2
multi_json => 1.12.1
mysql2 => 0.3.21
net-ldap => 0.12.1
pandoc-ruby => 2.0.1
paperclip => 4.2.4
protected_attributes => 1.1.3
ruby-openid => 2.3.0
rack-openid => 1.4.2
rack-raw-upload => 1.1.1
sprockets => 3.7.1
sprockets-rails => 3.2.0
rails => 4.2.7.1
rbpdf-font => 1.19.0
rbpdf => 1.19.0
redcarpet => 3.3.4
redmine_extensions => 0.1.17
request_store => 1.0.5
sass => 3.4.23
tilt => 2.0.6
sass-rails => 5.0.6
rich => 1.4.8
rmagick => 2.16.0
roadie => 3.2.1
roadie-rails => 1.1.1