Update Error (can't create folder 'phpseclib') Centos 6.7 - Plesk 12.0.18

[BeeAitsch]

This night my Plesk updated correctly so it seems that Strato has solved the problem after I informed them yesterday that their mail about problem solution on Monday has not been correct. Now everything works fine (although the system alerts my about an available upate to Plesk 12.5 but there are other issues that may prevent this update from running successful)...