Problems to backup files with character [ in filename

[musictus]

I have problems migrating a server. Trying all possible solutions, I came up with this error:

For security reason backup is performed on behalf of subscription system user.
System user has no read access to httpdocs/public/immagini/Z/FK-STR-ES2-PRO-SX[I.jpg file.

I think that the backup fails because of [ in the file name. Any workaround?

 

[jeanpaul]

try to change permission on this file by ftp client or try to rename the file to remove the special characters