Dolphin 2.0RC PHP version too old, please update

Hello there,
I have the problem with the error message: PHP Version too old, please update to PHP 5.3.0 at least
In the version 2.0RC, in live mode. I can't understand. I had the version already installed but erased. And now I have this error message. I use PHP Version 5.6 in cPanel, but it is all Versions the same.
Please help

Go to Admin Panel > Tools > Host Tools > phpinfo and see what version is shown at the top of the results.

Hello,

thank you!!! I did not think that's another than in the cPanel PHP version.
Actually installed version 5.2.17. I've tested it with phpinfo ().
Which was installed at 26/08. I think I'm going to relocate to a different server by Arvixe. I have always problems with this one server. I have another server at Arvixe, this works well. What the hell

AlexT said they were using the new Intervention Image library and if you check, that library requires PHP 5.4; so by default then, Dolphin 7.2 will require PHP 5.4.  However, it may depend on which parts of the library they use if it will trigger any errors if one is using less than 5.4 for 7.2.

Strike that, AlexT stated  "We used a bit older version which is compatible with PHP 5.3 "