rkhunter warnings

[_Alberto_]

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PRODUCT, VERSION, MICROUPDATE, OPERATING SYSTEM, ARCHITECTURE
Parallels Plesk Pannel, 11.5.30, MU version 45, CentOS 6.5, x64

PROBLEM DESCRIPTION
When I run a rkhunter scan I get the following warnings:

https://dl.dropboxusercontent.com/u/6632759/rkhunter-2014-05-23

STEPS TO REPRODUCE
Understand and fix the warning messages.

ACTUAL RESULT
See above.

EXPECTED RESULT
No warnings.

ANY ADDITIONAL INFORMATION
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