Fatal error: Unable to load cache resource 'cronjobs-38'

Information:

error message: Unable to load cache resource 'cronjobs-38'
error code: 0
file: /www/htdocs/v080184/wbb3/wcf/lib/system/cache/CacheHandler.class.php (214)
php version: 5.6.40-nmm8
wcf version: 1.0.11 pl 1 (Horizon)
date: Fri, 14 Jun 2024 13:02:40 +0000
request: /wbb3/wbb/index.php?l=2&page=Portal&s=684359f18a52cce447d3c40370158c2b6678d996&s=69def5b0800f77ad79aaeb1edc2e061ff0cf91f3
referer:

Stacktrace:

#0 /www/htdocs/v080184/wbb3/wcf/lib/system/cache/CacheHandler.class.php(196): CacheHandler->loadCacheFile(Array)
#1 /www/htdocs/v080184/wbb3/wcf/lib/system/cache/CacheHandler.class.php(155): CacheHandler->load(Array)
#2 /www/htdocs/v080184/wbb3/wbb/lib/system/WBBCore.class.php(73): CacheHandler->get('cronjobs-38', 'nextExec')
#3 /www/htdocs/v080184/wbb3/wbb/lib/system/WBBCore.class.php(38): WBBCore->initCronjobs()
#4 /www/htdocs/v080184/wbb3/wcf/lib/system/WCF.class.php(93): WBBCore->initTPL()
#5 /www/htdocs/v080184/wbb3/wbb/global.php(18): WCF->__construct()
#6 /www/htdocs/v080184/wbb3/wbb/index.php(7): require_once('/www/htdocs/v08...')
#7 {main}