Conflicts with Zotpress plugin

First, thanks for having written this useful plugin! Unfortunately, it seems to conflict with the “Zotpress” plugin. “Zotpress” generates bibliographies and integrates the Zotero literature database with WordPress. If it’s installed together with “External Links,” the HTML code of bibliographies generated by “Zotpress” is jumbled.

That is, “Zotpress” generates bibliographies such as this one:

<div class="zp-Zotpress">

<span class="ZOTPRESS_PLUGIN_URL" style="display:none;"><a href="http://rezo.phl.univie.ac.at/wp-content/plugins/zotpress/">http://rezo.phl.univie.ac.at/wp-content/plugins/zotpress/</a></span>

<span class="zp-Zotpress-Userid" style="display:none;">253538</span>

<div class='zp-ID-253538-BX5PEA4N zp-Entry'>

        <div xmlns="http://<a href="http://www.w3.org/1999/xhtm" class="external" rel="nofollow">www.w3.org/1999/xhtm</a>l" rel="chicago-fullnote-bibliography" class="csl-bib-body" style="line-height: 1.35; padding-left: 2em; text-indent:-2em;">
  <div class="csl-entry">Mellor, D. H. “The Reduction of Society.” <i>Philosophy</i> 57, no. 219 (January 1, 1982): 51–75. <a title="The Reduction of Society" rel="external nofollow" href="http://www.jstor.org/stable/4619539" class="external">http://www.jstor.org/stable/4619539</a>.</div>
</div>

</div><!--Entry-->

[...]

The problem is with the <div xmlns="http:// clause, where the xmlns attribute is not closed. Of course, it should be:

<div class="zp-Zotpress">

<span class="ZOTPRESS_PLUGIN_URL" style="display:none;">http://rezo.phl.univie.ac.at/wp-content/plugins/zotpress/</span>

<span class="zp-Zotpress-Userid" style="display:none;">253538</span>

<div class='zp-ID-253538-BX5PEA4N zp-Entry'>

        <div xmlns="http://www.w3.org/1999/xhtml" rel="chicago-fullnote-bibliography" class="csl-bib-body" style="line-height: 1.35; padding-left: 2em; text-indent:-2em;">
  <div class="csl-entry">Mellor, D. H. “The Reduction of Society.” <i>Philosophy</i> 57, no. 219 (January 1, 1982): 51–75. <a title="The Reduction of Society" rel="external" href="http://www.jstor.org/stable/4619539">http://www.jstor.org/stable/4619539</a>.</div>
</div>

</div><!--Entry-->

[...]

I don’t know which plugin in responsible for the bug. I have also filed this as a bug in the forum of “Zotpress.” See: https://ww.wp.xz.cn/support/topic/conflicts-with-external-links-plugin?replies=1#post-7047345

I am using the most recent version of both plugins (Zotpress 5.5.5, External Links 6.5).

Could you have a look at it?

You can find my system configuration at an older post in the “Zotpress” forum at:
https://ww.wp.xz.cn/support/topic/zotpress-555-imports-only-32-of-82-items-no-error-message?replies=1#post-7047267

Thanks a lot!

https://ww.wp.xz.cn/plugins/sem-external-links/