Title: SQL Integrity constraint violation problem
Last modified: September 23, 2017

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# SQL Integrity constraint violation problem

 *  [johnbiggs](https://wordpress.org/support/users/johnbiggs/)
 * (@johnbiggs)
 * [8 years, 7 months ago](https://wordpress.org/support/topic/sql-integrity-constraint-violation-problem/)
 * Hi,
 * We’ve upgraded from 2 to 3 and we keep getting this error – truncated for clarity.
   Looks like it only happens with 3.0 activates. We have the latest version of 
   WordPress installed.
 * Fatal error: Uncaught Exception: SQLSTATE[23000]: Integrity constraint violation:
   1052 Column ’email’ in field list is ambiguous in /var/www/wristwatchreview.com/
   wp-content/plugins/mailpoet/lib/Models/Model.php

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## Tags

 * [sql-error](https://wordpress.org/support/topic-tag/sql-error/)

 * 0 replies
 * 1 participant
 * Last reply from: [johnbiggs](https://wordpress.org/support/users/johnbiggs/)
 * Last activity: [8 years, 7 months ago](https://wordpress.org/support/topic/sql-integrity-constraint-violation-problem/)
 * Status: not resolved