What can be with the search?

Question

WordPress

There is a wp site
, woocommerce
when searching, there is a bug
if you enter any word in the search, the search works
if you enter the word glass, then the admin bar panel disappears, the basket becomes empty and the search result gives only a landing page with the
impression that somewhere there is an exception for this word or letters
where dig?

Answer 1

Look at the error in the log, the console shows a 500 error