Warning: DOMDocument::schemaValidate(): Invalid Schema file source

Software Support
1

@asmecher
OJS 3.3.0.14
PHP 7.4
Error log

Warning: DOMDocument::schemaValidate(): Invalid Schema file source in /home/ijbssrnetcom47/public_html/lib/pkp/classes/xslt/XMLTypeDescription.inc.php on line 147

2

I need to prompt response anyone solve above Warning: DOMDocument::schemaValidate(): Invalid Schema file source