Minify php warning
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Hi, we have a problem on one of our websites with minify option enabled, this message is appearing in every post.
PHP message: PHP Warning: preg_match(): Compilation failed: unmatched parentheses at offset 39 in /var/www/clients/client1/web6/web/wp-content/plugins/w3-total-cache/Minify_Plugin.php on line 977I debugged a little on Minify_Plugin.php line 977 and find that $expr is returning sitemap_index.xmlmain-sitemap.xslsitemap?\.xml?[a-z0-9_\-]*sitemap[a-z0-9_\-]*\xml|xsl)?
It’s closing a parentheses but never opens it.We have last wordpress version and last plugin version.
Can you help us ? Thanks
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