Your bug report

#78823: [BUG] 31.0.50; org-babel-execute-src-block: Wrong type argument: integer-or-marker-p, nil

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 78823@debbugs.gnu.org.

-- 
78823: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=78823
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