In joomla 3.9.x environment, updating an extensions could cause an error with the following error messages
Joomla error: 0 Joomla\Filesystem\File::delete: Failed deleting inaccessible file
In joomla 3.9.x environment, updating an extensions could cause an error with the following error messages
Joomla error: 0 Joomla\Filesystem\File::delete: Failed deleting inaccessible file