500 Internal Server Error. Zabbix 6.4.3

[Del.Mar]

Hi mates!
I have fresh installation of zabbix 6.4.3. Try to open setup.php and see blank screen. What have I got?

$ uname -a
FreeBSD tank 13.2-RELEASE FreeBSD 13.2-RELEASE releng/13.2-n254617-525ecfdad597 GENERIC amd64​

PHP version and php modules

i@tank:~ $ php -v
PHP 8.2.6 (cli) (built: May 31 2023 23:56:53) (ZTS)
Copyright (c) The PHP Group
Zend Engine v4.2.6, Copyright (c) Zend Technologies
i@tank:~ $ php -m
[PHP Modules]
bcmath
bz2
Core
ctype
date
dom
filter
gd
gettext
hash
iconv
json
ldap
libxml
mbstring
mysqli
mysqlnd
openssl
pcre
random
Reflection
session
SimpleXML
sockets
SPL
standard
xml
xmlreader
xmlwriter
zip
zlib
[Zend Modules]

I use nginx+php-fpm thgrough unix socket. Phpinfo.php works fine.
Nginx debug error log here

2023/06/01 02:32:45 [error] 1473#100391: *22 FastCGI sent in stderr: "PHP message: PHP Fatal error:  Uncaught Error: Class "CHtmlEntity" not found in /usr/local/www/zabbix64/include/html.inc.php:146
Stack trace:
#0 /usr/local/www/zabbix64/include/classes/helpers/CBrandHelper.php(121): COPYR()
#1 /usr/local/www/zabbix64/include/html.inc.php(834): CBrandHelper::getFooterContent()
#2 /usr/local/www/zabbix64/setup.php(194): makePageFooter()
#3 {main}
  thrown in /usr/local/www/zabbix64/include/html.inc.php on line 146" while reading response header from upstream, client: 192.168.0.29, server: tank.local, request: "GET /zabbix/setup.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm.sock:", host: "tank.local"
2023/06/01 02:32:45 [error] 1473#100391: *22 FastCGI sent in stderr: "; PHP message: PHP Warning:  Undefined array key "file" in /usr/local/www/zabbix64/include/classes/debug/CProfiler.php on line 381; PHP message: PHP Warning:  Undefined array key "line" in /usr/local/www/zabbix64/include/classes/debug/CProfiler.php on line 381; PHP message: PHP Warning:  Trying to access array offset on value of type null in /usr/local/www/zabbix64/include/classes/core/CCookieSession.php on line 194; PHP message: PHP Warning:  Undefined array key "file" in /usr/local/www/zabbix64/include/classes/debug/CProfiler.php on line 381; PHP message: PHP Warning:  Undefined array key "line" in /usr/local/www/zabbix64/include/classes/debug/CProfiler.php on line 381; PHP message: PHP Warning:  Cannot modify header information - headers already sent in /usr/local/www/zabbix64/include/classes/helpers/CCookieHelper.php on line 59; PHP message: PHP Warning:  PHP Request Shutdown: Failed to write session data using user defined save handler. (session.save_path: /tmp, handler: write) in Unknown on line 0" while reading upstream, client: 192.168.0.29, server: tank.local, request: "GET /zabbix/setup.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm.sock:", host: "tank.local"

[Hamardaban]

The reason is that one file with a description of the class CHtmlEntity is missing .
Take the ui/include/classes/htmlCHtmlEntity.php file from the source files and put it on your server the same path .

[Hamardaban]

How did you install zabbix64-frontend and zabbix64-server ? From ports, pkg or sources?

Pls show "pkg version -v | grep zabb"

[Del.Mar]

How did you install zabbix64-frontend and zabbix64-server ? From ports, pkg or sources?

Pls show "pkg version -v | grep zabb"

I've installed from ports.

i@tank:~ $ pkg info | grep zabb
zabbix64-agent-6.4.3           Enterprise-class open source distributed monitoring (agent)
zabbix64-frontend-php82-6.4.3  Enterprise-class open source distributed monitoring (frontend-php82)
zabbix64-server-6.4.3          Enterprise-class open source distributed monitoring (server)

[Hamardaban]

I tried frontend 6.4.3 - it doesn't work.
There's a lot changed in the code and apparently there are errors.
Install the frontend from version 6.4.2 (download the sources and just copy the corresponding files.)

[KvLeshik]

Same error but after upgrade from 6.0.17 -> 6.0.18

FreeBSD zabbix0.x.y 13.1-RELEASE FreeBSD 13.1-RELEASE releng/13.1-n250148-fc952ac2212 GENERIC amd64

2023/06/01 13:30:50 [error] 13794#223277: *3 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Class "CHtmlEntity" not found in /usr/local/www/zabbix6/include/html.inc.php:142
Stack trace:
#0 /usr/local/www/zabbix6/app/views/monitoring.widget.problems.view.php(61): BULLET()
[NODE="1"]Home[/NODE] /usr/local/www/zabbix6/include/classes/mvc/CView.php(136): include('/usr/local/www/...')
[NODE="2"]Forum[/NODE] /usr/local/www/zabbix6/include/classes/core/ZBase.php(619): CView->getOutput()
#3 /usr/local/www/zabbix6/include/classes/core/ZBase.php(545): ZBase->processResponseFinal()
#4 /usr/local/www/zabbix6/include/classes/core/ZBase.php(222): ZBase->processRequest()
#5 /usr/local/www/zabbix6/include/config.inc.php(25): ZBase->run()
[NODE="6"]Special[/NODE] /usr/local/www/zabbix6/zabbix.php(22): require_once('/usr/local/www/...')
#7 {main}
thrown in /usr/local/www/zabbix6/include/html.inc.php on line 142" while reading response header from upstream, client: 1.2.3.4, server: zabbix.x.y, request: "POST /zabbix.php?sid=f1d45e3d975be58f&action=widget.prob lems.view HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm.sock:", host: "zabbix.x.y", referrer: "https://zabbix.x.y/zabbix.php?action=dashboard.view"​

PHP 8.1.19 (cli) (built: May 17 2023 17:38:47) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.19, Copyright (c) Zend Technologies​

If we now return the frontend from 6.0.17, the error changes to:

2023/06/01 12:49:18 [error] 13794#223277: *3 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Class "CHtml" not found in /usr/local/www/zabbix6/include/classes/html/CTag.php:172
Stack trace:
#0 /usr/local/www/zabbix6/include/classes/html/CTag.php(253): CTag->setAttribute()
[NODE="1"]Home[/NODE] /usr/local/www/zabbix6/include/triggers.inc.php(2018): CTag->setMenuPopup()
[NODE="2"]Forum[/NODE] /usr/local/www/zabbix6/app/views/monitoring.widget.problems.view.php(75): makeTriggersHostsList()
#3 /usr/local/www/zabbix6/include/classes/mvc/CView.php(136): include('/usr/local/www/...')
#4 /usr/local/www/zabbix6/include/classes/core/ZBase.php(619): CView->getOutput()
#5 /usr/local/www/zabbix6/include/classes/core/ZBase.php(545): ZBase->processResponseFinal()
[NODE="6"]Special[/NODE] /usr/local/www/zabbix6/include/classes/core/ZBase.php(222): ZBase->processRequest()
#7 /usr/local/www/zabbix6/include/config.inc.php(25): ZBase->run()
[NODE="8"]Private Messages[/NODE] /usr/local/www/zabbix6/zabbix.php(22): require_once('/usr/local/www/...')
[NODE="9"]Albums[/NODE] {main}
thrown in /usr/local/www/zabbix6/include/classes/html/CTag.php on line 172" while reading response header from upstream, client: 1.2.3.4, server: zabbix.x.y, request: "POST /zabbix.php?sid=f1d45e3d975be58f&action=widget.prob lems.view HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm.sock:", host: "zabbix.x.y", referrer: "https://zabbix.x.y/zabbix.php?action=dashboard.view"​

[Hamardaban]

The reason is that one file with a description of the class CHtmlEntity is missing .
Take the ui/include/classes/htmlCHtmlEntity.php file from the source files and put it on your server the same path .

[KvLeshik]

The reason is that one file with a description of the class CHtmlEntity is missing .
Take the ui/include/classes/htmlCHtmlEntity.php file from the source files and put it on your server the same path .

Thanks a lot, it helped. Looks like the FreeBSD port maintainer forgot to add this file to the plist

[Del.Mar]

Hi mates!
Thanks for answers and help. I've uploaded all files from source 6.4.3 package to zabbix frontend directory with rewrite. Install page open without errors.
Somebody posted bug here. Hope that port will be updated soon.