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Fatal error: Uncaught InvalidArgumentException: Vector $B is the zero vector in /home/ukrzmico/public_html/desktop/full_coverage/vendor/nlp-tools/nlp-tools/src/NlpTools/Similarity/CosineSimilarity.php:76 Stack trace: #0 /home/ukrzmico/public_html/desktop/full_coverage/grid.php(40): NlpTools\Similarity\CosineSimilarity->similarity() #1 /home/ukrzmico/public_html/desktop/full_coverage/body.php(3): include('/home/ukrzmico/...') #2 /home/ukrzmico/public_html/desktop/full_coverage.php(21): include('/home/ukrzmico/...') #3 {main} thrown in /home/ukrzmico/public_html/desktop/full_coverage/vendor/nlp-tools/nlp-tools/src/NlpTools/Similarity/CosineSimilarity.php on line 76