ThinkPHP Class'\ think\ db\ builder\ 'not found

when the operation inserts new data into the database, "PHP message: PHP Fatal error: Class" thinkdbbuilder" not found in / tp5/thinkphp/library/think/db/Connection.php on line 159"
excuse me, what is the problem?

Jul.10,2022

check whether there is a thinkdbbuilder class


excuse me, have you solved this problem? I now have this problem
fatal error: Class' thinkoracleBuilder' not found

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-64f5-7b2f38-1cdcf.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b2f38-1cdcf.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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