[SOLVED] WordPress can't update.

Hello,
I used below command to update WordPress plug-ins:
Code:# /usr/local/bin/wp plugin update --all --path=/var/www/wordpressBut it show me below error:
Code:Warning: chmod() has been disabled for security reasons in /var/www/wordpress/wp-admin/includes/class-wp-filesystem-direct.php on line 173
https://downloads.wordpress.org/plugin/fv-wordpress-flowplayer.zip...
Using cached file '/root/.wp-cli/cache/plugin/fv-wordpress-flowplayer-7.4.40.727.zip'...
Warning: Could not create directory.
https://downloads.wordpress.org/plugin/recent-posts-widget-extended.1.0.0.zip...
Using cached file '/root/.wp-cli/cache/plugin/recent-posts-widget-extended-1.0.0.zip'...
Warning: Could not create directory.
https://downloads.wordpress.org/plugin/w3-total-cache.2.1.1.zip...
Using cached file '/root/.wp-cli/cache/plugin/w3-total-cache-2.1.1.zip'...
Warning: Could not create directory.
Error: No plugins updated.
+------------------------------+-------------+-------------+--------+
| name | old_version | new_version | status |
+------------------------------+-------------+-------------+--------+
| fv-wordpress-flowplayer | 7.4.39.727 | 7.4.40.727 | Error |
| recent-posts-widget-extended | 0.9.9.7 | 1.0.0 | Error |
| w3-total-cache | 2.1.0 | 2.1.1 | Error |
+------------------------------+-------------+-------------+--------+I opened wp-config.php" file and added below line to it:
Code:define('FS_METHOD','direct');But problem not solved.
I changed some PHP configuration as below:
Code:allow_url_fopen = Off
allow_url_include = Off
variables_order = "GPCS"
allow_webdav_methods = Off
session.gc_maxlifetime = 600
file_uploads = On
upload_tmp_dir = /tmp/
upload_max_filesize = 2M
max_file_uploads = 2
enable_dl = Off
disable_functions = system, exec, shell_exec, passthru, phpinfo, show_source, highlight_file, popen, proc_open, fopen_with_path, dbmopen, dbase_open, putenv, move_uploaded_file, chdir, mkdir, rmdir, chmod, rename, filepro, filepro_rowcount, filepro_retrieve, posix_mkfifo
# see also: http://ir.php.net/features.safe-mode
disable_classes =
session.name = myPHPSESSID
session.auto_start = Off
session.use_trans_sid = 0
session.cookie_domain = full.qualified.domain.name
session.use_strict_mode = 1
session.use_cookies = 1
session.use_only_cookies = 1
session.cookie_lifetime = 14400
session.cookie_secure = 1
session.cookie_httponly = 1
session.cookie_samesite = Strict
session.cache_expire = 30
session.sid_length = 256
session.sid_bits_per_character = 6
memory_limit = 50M
post_max_size = 20M
max_execution_time = 60
report_memleaks = On
track_errors = Off
html_errors = OffIs it related to these changes?
I removed "chmode()" from "disable_functions", but not matter.

Thank you.