bcdiv(): Argument #1 ($num1) is not well-formed in CLineGraphDraw.php

[rochine123]

I got an error ,when I view lastdata -->graph-->last7day , how to solve it .pls ?

2021/07/16 15:59:45 [error] 18532#0: *36354510 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught ValueError: bcdiv(): Argument #1 ($num1) is not well-formed in /opt/nginx/html/zabbix/include/classes/graphdraw/CLineGraphDraw.php:368
Stack trace:
#0 /opt/nginx/html/zabbix/include/classes/graphdraw/CLineGraphDraw.php(368): bcdiv('-9.999999999621...', '5')
#1 /opt/nginx/html/zabbix/include/classes/graphdraw/CLineGraphDraw.php(2554): CLineGraphDraw->selectData()
#2 /opt/nginx/html/zabbix/chart.php(147): CLineGraphDraw->draw()
#3 {main}
thrown in /opt/nginx/html/zabbix/include/classes/graphdraw/CLineGraphDraw.php on line 368" while reading response header from upstream, client: 10.1.64.51, server: localhost, request: "GET /zabbix/chart.php?from=2021-07-15%2011%3A00%3A00&to=2021-07-15%2012%3A00%3A00&itemids%5B0%5D=49869&type=0&prof ileIdx=web.item.graph.filter&profileIdx2=49869&wid th=1302&height=200&_=uwsbvpmq&screenid= HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "10.1.64.120:1080", referrer: "http://10.1.64.120:1080/zabbix/history.php?action=showgraph&itemids[]=49869"

[dimir]

Which zabbix-web version?

[rochine123]

zabbix 4.4.10

[dimir]

Which php version do you have? Probably package php-fpm.

[rochine123]

php-fpm -v :
PHP 8.0.3 (fpm-fcgi) (built: Mar 10 2021 20:39:39) (DEBUG)
Copyright (c) The PHP Group
Zend Engine v4.0.3, Copyright (c) Zend Technologies

[cyber]

php 8 is not supported even for latest version... so for 4.4.10 it is pretty much out of question.

https://www.zabbix.com/documentation/current/manual/installation/requirements

PHP

7.2.5 or later

PHP 8.0 is not supported.