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Latest post by nicholas on Wednesday, 21 January 2026 12:07 CST
Sorry to bother.
Trying to figure out how to fix this error on multiple sites:
Update: Could not open update site #1691 "FOF Updates (official releases)", URL: http://cdn.akeebabackup.com/updates/fof.xml
I'm nervous to delete FOF or F0F files, it can break my sites.
F0F is FOF 2.x which was discontinued in 2016 – ten years ago. The maximum supported Joomla version 3.5 and the maximum supported PHP version was 7.0.
FOF is either FOF 3.x discontinued in 2019, or FOF 4.x discontinued in 2021. FOF 3 supported up to Joomla 3.9 and PHP 8.0, whereas FOF 4 supported up to Joomla 4.2 and PHP 8.2.
We stopped using FOF for our software in 2021. We have been using Joomla's MVC framework since the release of our Joomla 4.0-compatible software back in 2021.
In mid-2025, four years after the discontinuation of FOF and several months since we stopped supporting our Joomla 3 software, we finally took down the update files for FOF.
You should just remove FOF. It's a dead library which can't even run in the Joomla or PHP version you have. The fact that your Joomla 5 site running on PHP 8.2 isn't broken proves that nothing you have installed on it uses FOF. If it did, your site would've been broken since even FOF 4 cannot possibly run on Joomla 5.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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