Where are WP_Errors Saved

WP_Error kind of errors are a poor substitution for exception (something that php 4 didn’t have IIRC), they are not actual software errors, and are not being kept in any log if the developer do not write code for it.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)