Error: Call to a member function render() on null in Seboettg\CiteProc\CiteProc->bibliography() (line 137 of /code/vendor/seboettg/citeproc-php/src/CiteProc.php).

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Please follow the general troubleshooting steps first:

• [x] I read the README and followed the instructions.
• [x] I am sure that the used CSL metadata follows the CSL schema.
• [x] I use a valid CSL stylesheet

Bug reports:

I get the following error when a style does not have a bibliography.

Error: Call to a member function render() on null in Seboettg\CiteProc\CiteProc->bibliography() (line 137 of /code/vendor/seboettg/citeproc-php/src/CiteProc.php).

Used CSL stylesheet:

https://github.com/citation-style-language/styles/blob/master/bluebook-law-review.csl

Used CSL metadata

I don't have that information.