Topic on Extension talk:Replace Text

Hi! I have updated my wiki to MW 1.37.1 and extension itself. After that I see following error at Replace Text special page:

Deprecated: Use of MWNamespace::getSubject was deprecated in MediaWiki 1.34. [Called from MediaWiki\Extension\ReplaceText\SpecialReplaceText::namespaceTables in /var/www/u1406315/data/www/wikireshebnik.org/extensions/ReplaceText/src/SpecialReplaceText.php at line 601] in /var/www/u1406315/data/www/wikireshebnik.org/includes/debug/MWDebug.php on line 375

How can I fix this problem?

Unless you're a developer, you should disable E_DEPRECATED and E_USER_DEPRECATED notices on production websites

I have asked my hosting provider switch off such kinds of mistake, despite it was done I still see this error.

You should upgrade to the latest version of Replace Text, and then this problem will go away. Don't use the REL1_37 branch (or any other "REL" branch) of Replace Text - it will lead to problems like this.