Fatal error: PHP error in file /var/kunden/webs/nastja/wcf/lib/system/WCF.class.php (111): Function set_magic_quotes_runtime() is deprecated

Information:

error message: PHP error in file /var/kunden/webs/nastja/wcf/lib/system/WCF.class.php (111): Function set_magic_quotes_runtime() is deprecated
error code: 0
file: /var/kunden/webs/nastja/wcf/lib/system/WCF.class.php (209)
php version: 5.4.45-0+deb7u2
wcf version: 1.0.3 pl 2
date: Tue, 03 May 2016 20:07:34 +0000
request: /wbb/index.php?page=Thread&threadID=4670
referer:

Stacktrace:

#0 [internal function]: WCF->handleError(8192, 'Function set_ma...', '/var/kunden/web...', 111, Array)
#1 /var/kunden/webs/nastja/wcf/lib/system/WCF.class.php(111): set_magic_quotes_runtime()
#2 /var/kunden/webs/nastja/wcf/lib/system/WCF.class.php(45): WCF->initMagicQuotes()
#3 /var/kunden/webs/nastja/wbb/global.php(18): WCF->__construct()
#4 /var/kunden/webs/nastja/wbb/index.php(7): require_once('/var/kunden/web...')
#5 {main}