There is some hacker attempt there and hope you got this fixed and prevented as well.

Unhandled exception - InvalidArgumentException
site

A PHP Exception occurred on your site. Here you can find the stack trace:

Exception Type: InvalidArgumentException
File: /var/www/vhosts/site/httpdocs/libraries/src/MVC/Controller/BaseController.php
Line: 336
Message: Invalid controller: name='icon', format=''

#0 /var/www/vhosts/site/httpdocs/components/com_sppagebuilder/sppagebuilder.php(32): Joomla\CMS\MVC\Controller\BaseController::getInstance()
#1 /var/www/vhosts/site/httpdocs/libraries/src/Dispatcher/LegacyComponentDispatcher.php(71): require_once('...')
#2 /var/www/vhosts/site/httpdocs/libraries/src/Dispatcher/LegacyComponentDispatcher.php(73): Joomla\CMS\Dispatcher\LegacyComponentDispatcher::{closure:Joomla\CMS\Dispatcher\LegacyComponentDispatcher::dispatch():70}()
#3 /var/www/vhosts/site/httpdocs/libraries/src/Component/ComponentHelper.php(361): Joomla\CMS\Dispatcher\LegacyComponentDispatcher->dispatch()
#4 /var/www/vhosts/site/httpdocs/libraries/src/Application/SiteApplication.php(218): Joomla\CMS\Component\ComponentHelper::renderComponent()
#5 /var/www/vhosts/site/httpdocs/libraries/src/Application/SiteApplication.php(272): Joomla\CMS\Application\SiteApplication->dispatch()
#6 /var/www/vhosts/site/httpdocs/libraries/src/Application/CMSApplication.php(320): Joomla\CMS\Application\SiteApplication->doExecute()
#7 /var/www/vhosts/site/httpdocs/includes/app.php(58): Joomla\CMS\Application\CMSApplication->execute()
#8 /var/www/vhosts/site/httpdocs/index.php(51): require_once('...')
#9 {main}

Request information
GET variables

Array
(
    [option] => com_sppagebuilder
    [task] => icon.upload
)

POST variables

Array
(
)

COOKIE variables

Array
(
    [61ba2f65c4ea7cfa845eda520fb410b4] => 87846d72189ef5e1be7327233bbf77d2
)

REQUEST variables

Array
(
    [option] => com_sppagebuilder
    [task] => icon.upload
)

SERVER variables

Array
(
    [USER] => site_xxx
    [HOME] => vhosts/site
    [HTTP_CONTENT_TYPE] => multipart/form-data; boundary=c7a54e65525d0914c4f04720ef48ed39
    [HTTP_CONTENT_LENGTH] => 6111
    [HTTP_COOKIE] => 61ba2f65c4ea7cfa845eda520fb410b4=87846d72189ef5e1be7327233bbf77d2
    [HTTP_X_REQUESTED_WITH] => XMLHttpRequest
    [HTTP_ACCEPT_LANGUAGE] => en-US,en;q=0.5
    [HTTP_CONNECTION] => keep-alive
    [HTTP_ACCEPT] => text/html,application/xhtml+xml,*/*;q=0.8
    [HTTP_ACCEPT_ENCODING] => gzip, deflate, zstd
    [HTTP_USER_AGENT] => Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
    [HTTP_HOST] => www.site
    [REDIRECT_STATUS] => 200
    [SERVER_NAME] => www.site
    [SERVER_PORT] => 443
    [SERVER_ADDR] => 
    [REMOTE_PORT] => 64449
    [REMOTE_ADDR] => 160.187.210.180
    [SERVER_SOFTWARE] => nginx/1.30.4
    [GATEWAY_INTERFACE] => CGI/1.1
    [HTTPS] => on
    [REQUEST_SCHEME] => https
    [SERVER_PROTOCOL] => HTTP/1.1
    [DOCUMENT_ROOT] => /var/www/
    [DOCUMENT_URI] => /index.php
    [REQUEST_URI] => /index.php?option=com_sppagebuilder&task=icon.upload
    [SCRIPT_NAME] => /index.php
    [CONTENT_LENGTH] => 6111
    [CONTENT_TYPE] => multipart/form-data; boundary=c7a54e65525d0914c4f04720ef48ed39
    [REQUEST_METHOD] => POST
    [QUERY_STRING] => option=com_sppagebuilder&task=icon.upload
    [SCRIPT_FILENAME] => /var/www/vhosts/site/httpdocs/index.php
    [PATH_INFO] => 
    [FCGI_ROLE] => RESPONDER
    [PHP_SELF] => /index.php
    [REQUEST_TIME_FLOAT] => 1787619555.18
    [REQUEST_TIME] => 1787619555
    [argv] => Array
        (
            [0] => option=com_sppagebuilder&task=icon.upload
        )

    [argc] => 1
)