WampServer

hi, my name is Daniel. I using wamp to develop my photography website. I'm using wordpress + prophoto4 theme. Everything is OK till i want to start to work and start a new design. Appear a notification

" Fatal error: Call to undefined function get_current_screen() in C:\wamp\www\faust-photo\wp-includes\functions.php on line 3966"

Call Stack
# Time Memory Function Location
1 0.0170 174960 {main}( ) ..\index.php:0
2 0.0250 217472 require_once( 'C:\wamp\www\faust-photo\wp-admin\admin.php' ) ..\index.php:10
3 0.0410 228712 require_once( 'C:\wamp\www\faust-photo\wp-load.php' ) ..\admin.php:30
4 0.0540 236112 require_once( 'C:\wamp\www\faust-photo\wp-config.php' ) ..\wp-load.php:29
5 0.0620 294272 require_once( 'C:\wamp\www\faust-photo\wp-settings.php' ) ..\wp-config.php:90
6 1.2801 10509392 do_action( ) ..\wp-settings.php:296
7 1.2801 10510296 call_user_func_array ( ) ..\plugin.php:406
8 1.2801 10510312 ppReady::ppLoaded( ) ..\plugin.php:406
9 1.2801 10511536 ppReady::everywhere( ) ..\ready.php:39
10 1.3821 10886480 ppReady::interceptRequestCommands( ) ..\ready.php:140
11 1.4511 11717976 ppIFrame->render( ) ..\ready.php:318
12 1.4561 11722552 ppIFrame::wp_iframe( ) ..\iFrame.php:144
13 1.6711 12321128 wp_iframe( ) ..\iFrame.php:301
14 1.6741 12321968 do_action( ) ..\media.php:400
15 1.6741 12322976 call_user_func_array ( ) ..\plugin.php:406
16 1.6741 12322992 wp_auth_check_load( ) ..\plugin.php:406

Please help me and tell me what i have to do, because i have no coding expereience
Thanks

You would be better off asking for help from the prophoto4 theme developers.