Server : Apache System : Linux server1.cgrithy.com 3.10.0-1160.95.1.el7.x86_64 #1 SMP Mon Jul 24 13:59:37 UTC 2023 x86_64 User : nobody ( 99) PHP Version : 8.1.23 Disable Function : NONE Directory :  /var/softaculous/adminer/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

1. The file in the zip is to be renamed to "adminer.php". Just remove the version from the name.
2. Copy index.php from the old zip to new zip
3. Changelog taken from github.
4. PHP REQUIREMENT LINK : https://www.adminer.org/#requirements