What happened when react reported Cannot call a class as a function, in ie9?

my project will display normally on Google after it is packaged, but report "Cannot call a class as a function
"

on ie9.

which god can help

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-64f5-1b2bae2-2bac8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2bae2-2bac8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?