Why doesn't mysqlworkbench query output content?

after clicking execute in this way, it has been executed all the time, but there is no output. What is going on?

Mar.03,2021

remove the front of select

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-64f5-1bf98cd-316cd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf98cd-316cd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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