Bitrix Undefined class constant 'COMMENTS_ENTITY_LIB_RECOMEND_NAME'?

Question

1C-Bitrix

Good day to all! Suddenly, on the site, when going to the page with a list of elements, an error appeared:

[Error] 
Undefined class constant 'COMMENTS_ENTITY_LIB_RECOMEND_NAME' (0)
/home/bitrix/www/library/recommendations/index.php:104

Tried installing updates, didn't help. Plz tell me how to get rid of it??!?

Answer 1

Sorian is dumbfounded. It's just that not all files were deployed to the virtual machine

Answer 2

this is clearly a third party module