Install problem

[Wilamowski]

5.0.0 Beta 14
vbulletin-style.xml:
vbulletin-settings.xml:
vbulletin-language.xml:
vbulletin-adminhelp.xml:

vBulletin 5.0.0 Beta 14 Install System
(Please be patient as some parts may take some time)
Install 5.0.0 Beta 14
Status: Aborted
36%

Action Required
Unexpected Text:
<?xml version="1.0" encoding="windows-1252"?>

Fatal error: Uncaught exception 'Exception' with message 'xml error Unsupported encoding, on line 1' in /volume1/web/vb5/core/vb/xml/import.php:161
Stack trace:
#0 /volume1/web/vb5/core/vb/xml/import/widget.php(18): vB_Xml_Import:arseFile('/volume1/web/vb...')
#1 /volume1/web/vb5/core/install/includes/class_upgrade_final.php(55): vB_Xml_Import_Widget->import('/volume1/web/vb...')
#2 /volume1/web/vb5/core/install/includes/class_upgrade.php(1572): vB_Upgrade_final->step_1(Array)
#3 /volume1/web/vb5/core/install/includes/class_upgrade_ajax.php(610): vB_Upgrade_Version->execute_step(1, 1, Array)
#4 /volume1/web/vb5/core/install/includes/class_upgrade_ajax.php(401): vB_Upgrade_Ajax->execute_step(1, 0, Object(vB_Upgrade_final), Object(vB_XML_Builder_Ajax), 1, NULL, 0, Array)
#5 /volume1/web/vb5/core/install/includes/class_upgrade_ajax.php(148): vB_Upgrade_Ajax->process_step('final', 1, 0, 1, NULL, 0, 0, 0, Array)
#6 /volume1/web/vb5/core/install/includes/class_upgrade.php(430): vB_Upgrade_Ajax->init(NULL)
#7 /volume1/web/vb5/ in /volume1/web/vb5/core/vb/xml/import.php on line 161

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SQL 5.1.49, PHP/5.3.15