RSS Feed/News Spammed with 'Increment on type bool has no effect' - recommended PHP version to fix?

[ENXF NET]

As stated in the title. Error logs below. Current PHP version is 8.3.0. What version do I need to fix this? My XF version is 2.2.17. I have looked here but can't find a bug report with the same XF version, so I don't know what PHP version is needed to address this.

Spoiler
#0 src/XF/BbCode/Renderer/Html.php(296): XF\Template\Templater->handleTemplateError(2, '[E_WARNING] Inc...', 's...', 296)
#1 src/XF/BbCode/Traverser.php(63): XF\BbCode\Renderer\Html->renderTag(Array, Array)
#2...

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