Hello erAck, Ah, I forgot to mention the actual Version: It's S9Y 2.1.5 with PHP 7.4.27 I'll check out the thread, you've posted and give you feedback, whether it worked ;) Regards, Simon Edit: Update: Big oof: now it works fine, after I edited the functions_installer.inc.php. Prior to my first post...

Hello guys, I tried to update S9Y via Auto-Updater to V2.3.5 but I'm getting a consistent itegrity-test failure: "Updating failed, because the integrity-test for the following files failed:" /mnt/rid/07/00/56730700/htdocs/serendipity_03/templates_c/serendipity-2.3.5/serendipity/templates/n...