There are only 2 .phar files in the folder.
I have downloaded both the files today.
Can you confirm if the checksum I have mentioned matches with the checksum of the file on your server?
[root@cloud4 plugins]# ll
-rw-r--r-- 1 root root 5551 Mar 24 23:49 storage-fs.phar
-rw-r--r-- 1 root root 24741977 Mar 24 23:49 storage-s3.phar0
-rw-r--r-- 1 root root 1194 Mar 8 19:48 updates.pem
[root@cloud4 plugins]# cksum storage-s3.phar0
4065182607 24741977 storage-s3.phar0
NOTE: Basis your email, I decided the download the whole v1.16.6 package again & upload only the *.phar files from the plugin folder but the download is broken it seems.
The download does not start automatically.
Clicking the redownload button is also not downloading the file.
I tried Chrome, Firefox, Firefox private mode & Edge.