Only the customer has no response from the browser on a particular page. How to find the reason?

A project that uses vue cannot reproduce problems in both test and production environments. The
user cannot be reproduced in the test environment, only in the user"s chrome and in the production environment will occur browser non-response on a particular page.

because we can"t reproduce the problem ourselves, we can"t find any clues after reading code carefully.
ask the master, where should we start when we encounter such a problem? How to find the cause of the problem?
in addition, where do I start with the fact that the browser is unresponsive?

Mar.28,2021

whether the user's chrome needs to be fixed, or the version level is not compatible. Guess

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b41d3b-41606.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b41d3b-41606.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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