when I activate the Phoca Open Graph System plugin, osmap stops working and i got the following error to view the xml
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CALL TO UNDEFINED METHOD JOOMLA\CMS\DOCUMENT\XMLDOCUMENT::ADDCUSTOMTAG()
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This page contains the following errors:
error on line 13 at column 12: Opening and ending tag mismatch: link line 0 and head
Below is a rendering of the page up to the first error.
0 - Call to undefined method Joomla\CMS\Document\XmlDocument::addCustomTag()
Joomla 3.9.19 Theme: Yoo Pro