1064 Error after installing Time Zone Fix addon

have Error
installed Time Zone Fix

1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SQL_SHOW_PRODUCT_INFO_MAIN' at line 1
in:
[SQL_SHOW_PRODUCT_INFO_MAIN]

Looks like you've damaged the files in the /includes/classes/db/mysql/ folder.
Put the original files back and that error should go away.

unfortunately, no

Okay, then you didn't restore the files properly.
Remove all the files you added with the addon, and put back the original version of all the files you replaced.

The SQL_SHOW_PRODUCT_INFO_MAIN constant is defined in the /includes/classes/db/mysql/define_queries.php file. So either you've deleted that file, or it's damaged, or you've done something very bizarre to other core system files that prevents that file from loading.

Restore from backup or do a fresh clean install again.