You are reading the wrong troubleshooting page (for Joomla! 3). Since you have Joomla! 4 you need to read https://www.akeeba.com/documentation/admin-tools-joomla/atwafissues.html As you can see in Joomla! 4, due to the different way plugins are organised, you need to rename the file plugins/system/admintools/services/provider.php
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Nicholas K. Dionysopoulos
Lead Developer and Director
π¬π·Greek: native π¬π§English: excellent π«π·French: basic β’ π My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!