I’m getting an error that my syntax is wrong, and I may have failed to escape something… anyone have any thoughts?

    UPDATE `wp_postmeta` SET `meta_value`= 
    'a:2{i:0;s:10:"subscriber";i:1;s:13:"administrator";}' WHERE 
    `meta_key` = "__wpdm_access"


Read more here: SQL Syntax Issue for WordPress


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