PHP Notice: fwrite(): Write of X bytes failed with errno=32 Broken pipe

[programarivm]

I'm starting chess-server with systemd service, in logs only this:

sh: 1: /usr/games/stockfish: not found
PHP Notice:  fwrite(): Write of 8 bytes failed with errno=32 Broken pipe in /home/chesslablab/chess-server/vendor/chesslablab/php-chess/src/UciEngine/Details/Process.php on line 55
PHP Notice:  fwrite(): Write of 4 bytes failed with errno=32 Broken pipe in /home/chesslablab/chess-server/vendor/chesslablab/php-chess/src/UciEngine/Details/Process.php on line 55

restarted service manually, and it work again. it's a second time where I see this connection problem (after update from dev.php), maybe local issue with the server environment, not the script..

Originally posted by @d47081 in #266 (comment)