DOMDocument::saveXML(): output conversion failed due to conv error, bytes 0x85 0x41 0x6C 0x69

File: /var/www/vhosts/nationalforests.org/subdomains/www/models/Zend/Feed/Rss.php
Line: 505

Stack Trace:
#0 [internal function]: Telavant_Controller->errorHandler(2, 'DOMDocument::sa...', '/var/www/vhosts...', 505, Array)
#1 /var/www/vhosts/nationalforests.org/subdomains/www/models/Zend/Feed/Rss.php(505): DOMDocument->saveXML()
#2 /var/www/vhosts/nationalforests.org/subdomains/www/controllers/blog/rss.php(44): Zend_Feed_Rss->saveXml()
#3 /var/www/vhosts/nationalforests.org/subdomains/www/models/Telavant/Controller.php(340): include('/var/www/vhosts...')
#4 /var/www/vhosts/nationalforests.org/subdomains/www/models/NFF/Controller.php(226): Telavant_Controller->dispatch()
#5 /var/www/vhosts/nationalforests.org/subdomains/www/main.php(8): NFF_Controller->dispatch()
#6 {main}