Автоматические обновления сторонних пакетов Webuzo, увеличивающие использование моего диска

Я использую самоуправляемую CentOS и заметил, что за 2 недели мое дисковое пространство увеличилось как 3 Гб из ниоткуда, и я думаю, оно уже увеличивалось раньше. Я месяцами работал над localhost и около 3 месяцев назад решил переиздать свой сайт,так что в основном это веб-сайт без трафика, и он почти остановлен, поэтому я не верю, что размер файла сайта увеличивается, как и размер mysql. Я понял, что каждую неделю я получаю как минимум одно автоматическое обновление приложений сторонних разработчиков Webuzo, таких как Joomla, Magento и других CMS, и вот загвоздка: это просто пакеты, я не использую ни один из них. и я не хочу использовать ни одно из них. У меня есть основания полагать, что они виноваты в этом беспорядке. Вот письмо, которое я получаю еженедельно:

Software Updates ( site address goes here )
Inbox

Server Webuzo via  *site address goes here* 
8:52 AM (10 hours ago)
to me

The following software were updated during Automatic Cron Updates:
Backdrop CMS 1.17.4 - Successful

The logs of the Updates are as follows:
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------ Есть еще кое-что, но я не могу разместить здесь больше текста --------------

osTicket 1.12
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From Webuzo Cron Jobs ( IP address goes here )

Мне нужно знаю, как решить эту проблему, поскольку мой сервер ничего не сделает с этим, а это значит, что я хочу удалить все пакеты, потому что я не использую ни один из них. Тем не менее, я по-прежнему хочу оставить все установленные системные приложения. Они дали мне учебник, в котором рассказали, как это сделать, но в их руководстве говорится только о системных приложениях. Какие команды SSH мне здесь следует использовать? Можно ли решить эту проблему с помощью какой-то панели управления?

Если я сохраню там пакеты сторонних производителей, они будут продолжать автоматически обновляться, пока не заполнят все мое дисковое пространство.