After the version of iview is updated to 2.9.0, the submenu of the navigation menu cannot add click events.

after the iview version is updated to 2.9.0, the submenu of the navigation menu cannot add click events

Feb.28,2021
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-64f5-1b310bf-2aaa8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b310bf-2aaa8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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